SAT Top 100 Vocabulary Words
The 100 most important vocabulary words for the Digital SAT Reading & Writing section. Definitions, example sentences, and word families help you recognize every variant on test day.
100 words · Part of speech · Definition · Example · Word family
Digital SAT vocabulary tip: The Digital SAT tests vocabulary primarily through "Words in Context" questions in the Reading & Writing module. You are asked to choose the word that best completes a sentence. Knowing the precise meanings and connotations of words — not just approximate definitions — is essential. Study the word family column to recognize related forms.
| # | Word | Part of Speech | Definition | Example Sentence | Word Family |
|---|---|---|---|---|---|
| 1 | ambiguous | adjective | Open to more than one interpretation; not having one obvious meaning. | The author's ambiguous ending leaves readers to draw their own conclusions about the characters' fate. | ambiguous / ambiguity / ambiguously / unambiguous |
| 2 | ameliorate | verb | To make something bad or unsatisfactory better; to improve. | New policies were introduced to ameliorate the living conditions in overcrowded urban districts. | ameliorate / amelioration / ameliorative |
| 3 | anachronism | noun | A thing belonging to a period other than that in which it exists; something outdated. | The passage describes a horse-drawn carriage as an anachronism in an era of electric vehicles. | anachronism / anachronistic / anachronistically |
| 4 | benevolent | adjective | Well meaning and kindly; generous in spirit; charitable. | The benevolent founder donated his entire estate to fund scientific research. | benevolent / benevolence / benevolently / malevolent |
| 5 | candid | adjective | Truthful and straightforward; frank and honest in expression. | The author was refreshingly candid about the limitations of her own research methodology. | candid / candidly / candor / candidness |
| 6 | capricious | adjective | Given to sudden changes of mood or behavior; unpredictable and impulsive. | The capricious weather made it impossible to schedule outdoor experiments reliably. | capricious / capriciously / capriciousness / caprice |
| 7 | circumspect | adjective | Wary and unwilling to take risks; cautious and careful in consideration. | A circumspect investor avoids speculation and focuses on long-term fundamentals. | circumspect / circumspection / circumspectly |
| 8 | covert | adjective | Not openly acknowledged or displayed; secret; hidden. | The covert nature of the operation made it impossible for journalists to report on its details. | covert / covertly / covertness / overt |
| 9 | cynical | adjective | Believing that people are motivated purely by self-interest; distrustful. | A cynical reading of the politician's speech suggests it was designed purely to gain votes. | cynical / cynicism / cynic / cynically |
| 10 | deference | noun | Humble submission and respect; yielding to another's judgment or authority. | In deference to the senior researcher's expertise, the team adopted her proposed methodology. | deference / defer / deferential / deferentially |
| 11 | diligent | adjective | Having or showing care and effort in work; hardworking and attentive. | Diligent preparation over several months gave her a decisive advantage on the exam. | diligent / diligence / diligently |
| 12 | eloquent | adjective | Fluent or persuasive in speaking or writing; clearly expressing emotion. | The essay was an eloquent defense of scientific literacy in modern democracies. | eloquent / eloquence / eloquently / ineloquent |
| 13 | empirical | adjective | Based on observation and experiment rather than theory alone. | The study provides the first empirical evidence that the drug reduces chronic inflammation. | empirical / empirically / empiricism / empiricist |
| 14 | equivocal | adjective | Open to more than one interpretation; ambiguous; uncertain or questionable. | The equivocal findings of the pilot study made it difficult to justify a larger trial. | equivocal / equivocate / equivocation / unequivocal |
| 15 | expedient | adjective/noun | Convenient and practical, even if possibly improper; a means of achieving an end. | The decision was politically expedient but failed to address the root causes of the problem. | expedient / expediency / expediently / inexpedient |
| 16 | explicit | adjective | Stated clearly and in detail; leaving nothing implied. | The contract contained an explicit clause prohibiting unauthorized disclosure of proprietary data. | explicit / explicitly / explicitness / implicit |
| 17 | facade | noun | The face of a building; an outward appearance that conceals the true nature. | Behind the facade of corporate success lay a deeply troubled organizational culture. | facade / face / front / veneer |
| 18 | fortuitous | adjective | Happening by chance, especially a lucky chance; accidental. | A fortuitous encounter at a conference led to the most productive research collaboration of her career. | fortuitous / fortuitously / fortuity / fortunate |
| 19 | gregarious | adjective | Fond of company; sociable; living in flocks or communities. | Highly gregarious by nature, the candidate thrived in the fast-paced environment of campaign politics. | gregarious / gregariousness / gregariously |
| 20 | hypocritical | adjective | Behaving in a way that contradicts one's claimed beliefs or feelings; insincere. | Critics called it hypocritical for a fossil fuel company to promote an environmental initiative. | hypocritical / hypocrisy / hypocrite / hypocritically |
| 21 | impartial | adjective | Treating all rivals or disputants equally; fair and just; unbiased. | An impartial judge considers evidence without regard to the social status of the parties. | impartial / impartiality / impartially / partial |
| 22 | impervious | adjective | Not allowing passage; unable to be affected by. | He seemed impervious to criticism, maintaining his position regardless of evidence against it. | impervious / imperviously / imperviousness / pervious |
| 23 | implicit | adjective | Implied though not plainly expressed; inherent in something. | There is an implicit assumption in the model that all variables behave linearly. | implicit / implicitly / implication / explicit |
| 24 | incongruous | adjective | Not in harmony or keeping with its surroundings; out of place. | The modern skyscraper looked incongruous among the nineteenth-century stone buildings. | incongruous / incongruity / incongruously / congruous |
| 25 | indifferent | adjective | Having no particular interest or concern; neither good nor bad; mediocre. | The public remained indifferent to the policy change despite the media campaign. | indifferent / indifference / indifferently / different |
| 26 | insidious | adjective | Proceeding in a gradual, subtle way with harmful effects; treacherous. | The insidious spread of misinformation undermines public trust in scientific institutions. | insidious / insidiously / insidiousness |
| 27 | intrepid | adjective | Fearless; adventurous; resolutely courageous. | The intrepid explorer documented previously unknown plant species in remote mountain regions. | intrepid / intrepidly / intrepidity |
| 28 | laconic | adjective | Using very few words; brief and concise in expression. | The scientist's laconic response to the interviewer's question was simply: 'the data speak for themselves.' | laconic / laconically / laconicism |
| 29 | lethargic | adjective | Affected by lethargy; sluggish and apathetic. | Participants who slept fewer than six hours reported feeling lethargic and unable to concentrate. | lethargic / lethargically / lethargy |
| 30 | lucid | adjective | Expressed clearly; easy to understand; mentally clear. | The professor was known for her lucid explanations of highly complex theoretical concepts. | lucid / lucidity / lucidly / elucidate |
| 31 | meticulous | adjective | Showing great attention to detail; very careful and precise. | The meticulous notes kept by the archivist allowed researchers to reconstruct the original experiment. | meticulous / meticulously / meticulousness |
| 32 | pragmatic | adjective | Dealing with things sensibly and realistically; practical rather than idealistic. | A pragmatic approach to climate policy focuses on achievable goals rather than theoretical ideals. | pragmatic / pragmatism / pragmatist / pragmatically |
| 33 | pretentious | adjective | Attempting to impress by affecting greater importance or merit than is actually possessed. | The reviewer dismissed the novel as pretentious, full of obscure references without real substance. | pretentious / pretentiously / pretentiousness / pretense |
| 34 | prolific | adjective | Producing many works; present in large numbers; highly productive. | The prolific researcher published more than 200 papers over the course of her career. | prolific / prolifically / proliferate / proliferation |
| 35 | prudent | adjective | Acting with or showing care and thought for the future; wise and cautious. | A prudent policy response requires weighing both short-term costs and long-term benefits. | prudent / prudence / prudently / imprudent |
| 36 | recalcitrant | adjective | Having an obstinately uncooperative attitude; resisting authority or regulation. | The recalcitrant participant refused to follow the study protocol despite repeated explanations. | recalcitrant / recalcitrance / recalcitrantly |
| 37 | sagacious | adjective | Having or showing keen mental discernment; wise; shrewd. | The sagacious diplomat avoided conflict by anticipating each party's objections in advance. | sagacious / sagacity / sagaciously |
| 38 | skeptical | adjective | Not easily convinced; having doubts; questioning the validity of claims. | The scientific community remained skeptical until the results had been independently replicated. | skeptical / skepticism / skeptic / skeptically |
| 39 | tenacious | adjective | Tending to keep a firm hold; persistent; not easily discouraged. | The tenacious researcher spent fifteen years pursuing the mechanism behind the disease. | tenacious / tenacity / tenaciously |
| 40 | transient | adjective | Lasting only for a short time; temporary; passing. | The economic benefits proved transient, disappearing within two years of the policy's implementation. | transient / transience / transiently / transitory |
| 41 | amiable | adjective | Having or displaying a friendly and pleasant manner. | The amiable professor was always willing to discuss ideas with students outside of class. | amiable / amiability / amiably |
| 42 | astute | adjective | Having or showing an ability to assess situations accurately; shrewd. | An astute observer would have noticed the flaw in the experimental design from the outset. | astute / astutely / astuteness |
| 43 | augment | verb | To make something greater by adding to it; to enlarge or supplement. | The researchers augmented their dataset by including previously unpublished archival records. | augment / augmentation / augmented |
| 44 | banal | adjective | So lacking in originality as to be obvious and boring; trite. | The critic accused the filmmaker of relying on banal tropes rather than original storytelling. | banal / banality / banally |
| 45 | bolster | verb | To support or strengthen; to prop up. | Additional clinical trials were needed to bolster the case for widespread adoption of the drug. | bolster / bolstering / bolstered |
| 46 | brevity | noun | Concise and exact use of words in writing or speech; shortness of time. | The memo's brevity was appreciated by executives who received dozens of reports daily. | brevity / brief / briefly / abbreviate |
| 47 | buoyant | adjective | Able to stay afloat; not sinking; cheerful and optimistic. | Consumer confidence remained buoyant despite rising interest rates. | buoyant / buoyancy / buoyantly |
| 48 | censure | noun/verb | Express severe disapproval of; formal criticism or condemnation. | The committee voted to censure the official for his failure to disclose financial conflicts. | censure / censurable / censuring |
| 49 | circumvent | verb | To find a way around an obstacle; to overcome by cleverness. | Some companies attempt to circumvent environmental regulations by relocating operations. | circumvent / circumvention / circumventable |
| 50 | coherent | adjective | Logical and consistent; forming a unified whole that makes sense. | The student's essay lacked a coherent structure, jumping between ideas without clear transitions. | coherent / coherence / coherently / incoherent |
| 51 | concise | adjective | Giving a lot of information clearly and in few words; brief but comprehensive. | The best scientific abstracts are concise without omitting any essential information. | concise / concisely / conciseness / concision |
| 52 | conjecture | noun/verb | An opinion or conclusion formed on the basis of incomplete information. | Without additional data, any explanation for the anomaly remains mere conjecture. | conjecture / conjectural / conjecturally |
| 53 | contemplate | verb | To look thoughtfully at; to think about carefully. | The passage invites readers to contemplate the long-term consequences of technological dependence. | contemplate / contemplation / contemplative / contemplatively |
| 54 | contentious | adjective | Causing or likely to cause disagreement or argument; controversial. | The proposed redistricting plan proved deeply contentious among competing political interests. | contentious / contentiousness / contentiously / contention |
| 55 | corroborate | verb | To confirm or give support to a statement, theory, or finding. | A third independent study corroborated the earlier findings on sleep and memory consolidation. | corroborate / corroboration / corroborative / corroborated |
| 56 | culminate | verb | To reach a climax or point of highest development. | Years of incremental research culminated in a breakthrough treatment for the rare disorder. | culminate / culmination / culminating |
| 57 | decorous | adjective | In keeping with good taste and propriety; polite and restrained. | The diplomat maintained a decorous tone throughout the tense negotiations. | decorous / decorously / decorum / indecorous |
| 58 | deliberate | adjective/verb | Done consciously and intentionally; to engage in long and careful consideration. | The commission deliberated for three days before issuing its final recommendations. | deliberate / deliberately / deliberation / deliberative |
| 59 | denounce | verb | To publicly declare to be wrong or evil; to condemn strongly. | Several leading scientists denounced the study's methodology as fundamentally flawed. | denounce / denunciation / denunciatory |
| 60 | depict | verb | To represent by a drawing, painting, or other art form; to describe in words. | The passage depicts the industrial city as both a place of opportunity and of exploitation. | depict / depiction / depicted / depicting |
| 61 | diffuse | adjective/verb | Spread out over a large area; not concentrated; to spread widely. | The organization's diffuse structure made it difficult to coordinate a rapid response. | diffuse / diffusion / diffusely / diffuseness |
| 62 | discerning | adjective | Having or showing good judgment; perceptive. | A discerning reader will notice that the author's argument rests on a single unreliable source. | discerning / discernment / discern / discerningly |
| 63 | disparate | adjective | Essentially different in kind; not able to be compared; markedly distinct. | The committee included members with disparate backgrounds, from engineering to philosophy. | disparate / disparity / disparately / disparateness |
| 64 | dissent | noun/verb | The expression or holding of opinions at variance with those held by authority. | Two members of the panel filed a formal dissent against the majority opinion. | dissent / dissenter / dissentient / dissenting |
| 65 | dubious | adjective | Hesitating or doubting; not to be relied upon; suspicious. | The historian regarded the newly discovered manuscript with dubious skepticism. | dubious / dubiously / dubiousness / indubitable |
| 66 | elusive | adjective | Difficult to find, catch, or achieve; hard to grasp or pin down. | A definitive cure for the condition has remained elusive despite decades of research. | elusive / elusively / elusiveness / elude |
| 67 | emulate | verb | To match or surpass by imitation; to replicate the function of. | Younger scientists in the lab sought to emulate the rigor of their mentor's experimental approach. | emulate / emulation / emulative / emulator |
| 68 | enigmatic | adjective | Difficult to interpret or understand; mysterious. | The author's enigmatic prose style has inspired widely divergent critical interpretations. | enigmatic / enigmatically / enigma |
| 69 | ephemeral | adjective | Lasting for a very short time; short-lived. | Online trends are often ephemeral, fading within days of their first appearance. | ephemeral / ephemerally / ephemerality |
| 70 | esoteric | adjective | Intended for or understood by only a small number of people with specialized knowledge. | The paper's esoteric terminology made it inaccessible to all but the most specialized readers. | esoteric / esoterically / esotericism |
| 71 | exacerbate | verb | To make a problem, bad situation, or negative feeling worse. | Rising sea levels will exacerbate flooding in low-lying coastal communities. | exacerbate / exacerbation / exacerbated |
| 72 | exemplary | adjective | Serving as a desirable model; representing the best of its kind. | The research team's exemplary methodology was cited as a model by later investigators. | exemplary / exemplify / exemplification / example |
| 73 | exhaustive | adjective | Thorough; fully comprehensive; leaving nothing out. | The review included an exhaustive analysis of every clinical trial published over thirty years. | exhaustive / exhaustively / exhaust / exhaustion |
| 74 | fervent | adjective | Having or displaying a passionate intensity of feeling. | The fervent advocacy of community groups was instrumental in reversing the policy decision. | fervent / fervency / fervently / fervor |
| 75 | frugal | adjective | Sparing in use of money or food; simple and without waste. | The frugal scientist ran experiments using inexpensive materials without sacrificing accuracy. | frugal / frugality / frugally |
| 76 | futile | adjective | Incapable of producing any useful result; pointless. | Without additional evidence, further argument on the matter seemed entirely futile. | futile / futility / futilely |
| 77 | hamper | verb | To hinder or impede the movement or progress of. | Budget cuts hampered the team's ability to complete data collection on schedule. | hamper / hampered / hampering |
| 78 | hinder | verb | To make it difficult for something to happen or develop; to obstruct. | Poor infrastructure hinders economic development in many rural areas. | hinder / hindrance / hindered / hindering |
| 79 | hypothetical | adjective | Based on or serving as a hypothesis; supposed; not necessarily real. | The author presents a hypothetical scenario to illustrate the consequences of the proposed policy. | hypothetical / hypothesis / hypothetically / hypothesize |
| 80 | illuminate | verb | To light up; to help make something clearer or better understood. | The new archaeological findings illuminate the commercial practices of the ancient civilization. | illuminate / illumination / illuminating / illuminatingly |
| 81 | immutable | adjective | Unchanging over time or unable to be changed. | The laws of thermodynamics are considered immutable principles of the physical universe. | immutable / immutability / immutably / mutable |
| 82 | impartial | adjective | Treating all rivals or disputants equally; unbiased. | The committee sought an impartial arbiter to resolve the dispute between the two research teams. | impartial / impartiality / impartially / partial |
| 83 | infer | verb | To deduce or conclude from evidence and reasoning. | From the sedimentary layers, geologists can infer the environmental conditions of ancient eras. | infer / inference / inferable / inferential |
| 84 | inherent | adjective | Existing in something as a permanent, essential, or characteristic attribute. | There is an inherent tension between economic growth and environmental sustainability. | inherent / inherently / inhere |
| 85 | innovative | adjective | Featuring new methods; advanced and original. | The innovative research design allowed the team to control for previously confounding variables. | innovative / innovate / innovation / innovator |
| 86 | intrinsic | adjective | Belonging naturally; essential; inherent; not dependent on external factors. | Many philosophers argue that human beings have intrinsic worth independent of their social utility. | intrinsic / intrinsically / extrinsic |
| 87 | irony | noun | The expression of meaning through language that normally signifies the opposite. | The irony of using fossil fuels to power clean energy research was not lost on the critics. | irony / ironic / ironically / ironist |
| 88 | magnitude | noun | The great size or extent of something; importance. | Scientists underestimated the magnitude of the disruption caused by the invasive species. | magnitude / magnify / magnification / grand |
| 89 | meager | adjective | Lacking in quantity or quality; scanty; deficient. | The meager evidence available was insufficient to support such a sweeping conclusion. | meager / meagerly / meagerness |
| 90 | mitigate | verb | To make less severe, serious, or painful; to lessen. | Early intervention can significantly mitigate the long-term effects of the condition. | mitigate / mitigation / mitigative / unmitigated |
| 91 | novel | adjective | New and original; not previously known or experienced. | The team proposed a novel explanation for the unexpected pattern in the data. | novel / novelty / novelist / novelize |
| 92 | nuanced | adjective | Characterized by subtle distinctions; not black and white. | A nuanced reading of the text reveals that the author's position is more complex than it first appears. | nuanced / nuance / nuancing |
| 93 | objective | adjective/noun | Not influenced by personal feelings; a goal or aim. | Scientific inquiry requires researchers to remain as objective as possible in their analysis. | objective / objectivity / objectively / subjective |
| 94 | obsolete | adjective | No longer produced or used; out of date. | Digital communication has rendered many traditional postal services obsolete. | obsolete / obsolescence / obsolescent / obsoletely |
| 95 | paradox | noun | A statement that seems self-contradictory but may be true; an absurd yet true statement. | It is a paradox that increasing food production has in some regions worsened nutritional outcomes. | paradox / paradoxical / paradoxically / paradoxically |
| 96 | partisan | adjective/noun | Firmly supporting a cause or party; prejudiced in favor of a cause. | The report was criticized for its partisan framing of a complex policy question. | partisan / partisanship / bipartisan / nonpartisan |
| 97 | pervasive | adjective | Spreading widely throughout an area or group of people. | The pervasive influence of social media on adolescent behavior is a major research focus. | pervasive / pervasively / pervasiveness / pervade |
| 98 | plausible | adjective | Seeming reasonable or probable; credible. | The researchers offered the most plausible explanation consistent with all available evidence. | plausible / plausibility / plausibly / implausible |
| 99 | profound | adjective | Very great or intense; showing insight; requiring deep study. | The discovery had a profound impact on the field of evolutionary biology. | profound / profoundly / profundity |
| 100 | refute | verb | To prove to be wrong or false; to disprove. | The new experimental data effectively refuted the decades-old theory of abiotic synthesis. | refute / refutation / refutable / irrefutable |
| 101 | reinforce | verb | To strengthen or support, especially with additional material or evidence. | The survey results reinforced the conclusion that consumer confidence was declining. | reinforce / reinforcement / reinforced / re-enforce |
| 102 | rhetoric | noun | Language designed to persuade or impress; the art of effective speech or writing. | Political rhetoric often prioritizes emotional appeal over evidence-based argumentation. | rhetoric / rhetorical / rhetorically / rhetorician |
| 103 | scrutinize | verb | To examine or inspect closely and thoroughly. | Peer reviewers scrutinize submitted manuscripts for methodological flaws before publication. | scrutinize / scrutiny / scrutinizing |
| 104 | speculate | verb | To form a theory or conjecture without firm evidence. | It would be premature to speculate about the mechanism until the replication studies are complete. | speculate / speculation / speculative / speculatively |
| 105 | subordinate | adjective/noun/verb | Lower in rank or position; to treat as of lesser importance. | The author subordinates personal narrative to the larger historical argument of the work. | subordinate / subordination / subordinately |
| 106 | superficial | adjective | Existing or occurring at or on the surface; not deep or thorough. | A superficial reading of the data overlooks the important outliers in the dataset. | superficial / superficially / superficiality / deep |
| 107 | suppress | verb | To forcibly put an end to; to prevent from being known. | The immune system suppresses inflammation through a cascade of chemical signals. | suppress / suppression / suppressive / unsuppressed |
| 108 | validate | verb | To demonstrate or support the truth or value of something. | The independent trial validated the original team's experimental results. | validate / validation / validated / invalidate |
| 109 | versatile | adjective | Able to adapt or be adapted to many different functions or activities. | Carbon is an extraordinarily versatile element, forming the structural basis of all organic molecules. | versatile / versatility / versatilely |
SAT vocabulary study strategies
Focus on connotations
SAT words-in-context questions often hinge on subtle distinctions. 'Candid' and 'blunt' both mean direct, but they carry different tones. Learn the nuances.
Study word families
If you know 'ambiguous,' you can also handle 'ambiguity' and 'unambiguous.' One word learned becomes three.
Eliminate extreme answers
Digital SAT Reading & Writing questions that use negative or extreme vocabulary (like 'despise' or 'oblivious') are often wrong. Context usually calls for a moderate option.
Read widely
The best long-term vocabulary preparation is reading quality nonfiction — science journalism, essays, and academic articles expose you to words in authentic context.
Test your vocabulary on a real SAT
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