Test prep

GMAT vocabulary words for test prep

This list is for GMAT test-takers who want to strengthen the advanced vocabulary that shows up in Verbal Reasoning passages and sentence correction questions. Study each word's precise meaning, since GMAT questions often hinge on subtle differences between similar-sounding choices.

30 words
WordMeaningIn a sentenceSave
ambiguousadjectiveOpen to more than one reasonable interpretation.The ambiguous instruction left us unsure which door to use.
ameliorateverbTo make a harmful or difficult situation better.The extra bus service should ameliorate crowding during the morning rush.
arbitraryadjectiveBased on random choice or personal whim rather than any reason, system, or law.The fine seemed arbitrary since no clear rule explained why it was so high.
cogentadjectiveClear, logical, and convincing, especially in argument or reasoning.She presented a cogent argument that persuaded even the skeptical board members.
comprehensiveadjectiveComplete and including everything that is necessary or relevant to a subject.The report offered a comprehensive overview of the company's finances over the past decade.
contentiousadjectiveLikely to cause disagreement or argument; controversial.Immigration remained the most contentious issue of the entire election campaign.
corroborateverbTo confirm or give support to a statement, theory, or finding with additional evidence.Two independent witnesses corroborated the driver's account of the accident.
deleteriousadjectiveCausing harm or damage, often in a way that is not immediately obvious.Long-term stress can have deleterious effects on both physical and mental health.
discrepancynounA difference or lack of agreement between facts, figures, or claims that are expected to match.The accountant found a discrepancy between the invoice total and the amount actually paid.
disparateadjectiveSo different from each other that comparison is difficult; made up of essentially distinct elements.The committee struggled to unite such disparate opinions into a single policy.
empiricaladjectiveBased on observation or experiment rather than theory or pure reasoning.The scientist gathered empirical evidence before drawing any conclusions.
equivocaladjectiveOpen to more than one interpretation, often deliberately vague or ambiguous.Her equivocal answer left us unsure whether she supported the plan.
exacerbateverbTo make a problem, injury, or bad situation more severe or worse.Skipping physical therapy will only exacerbate the pain in your knee.
fallaciousadjectiveBased on a mistaken belief or flawed reasoning, and therefore misleading or false.The senator's fallacious argument relied on a statistic that had been taken out of context.
inconsistentadjectiveNot staying the same over time, or not in agreement with something else.The team's inconsistent performance made it hard to predict whether they would win or lose.
mitigateverbTo make a harmful effect, problem, or risk less severe.Planting trees can help mitigate heat in a paved courtyard.
nuancedadjectiveMarked by subtle distinctions or shades of meaning, rather than being simple or extreme.The professor gave a nuanced explanation that acknowledged strengths on both sides of the debate.
paradoxnounA statement or situation that seems contradictory or absurd but may nonetheless be true.It's a paradox that the more choices we have, the harder it becomes to decide.
plausibleadjectiveSeeming reasonable, likely, or believable.The detective needed a plausible explanation for why the suspect was near the scene.
pragmaticadjectiveFocused on what will work in the actual situation.With rain approaching, we took the pragmatic step of moving the tables indoors.
precariousadjectiveNot securely held or positioned, and likely to fail, fall, or collapse without warning.The old ladder left him in a precarious position high above the roof.
premisenounA statement or idea assumed to be true and used as the basis for an argument or a piece of reasoning.The lawyer's entire case rested on the premise that the contract had never been signed.
redundantadjectiveNo longer needed because something else does the same job, or dismissed from a job because the position is unnecessary.The old backup system became redundant once the new cloud storage was installed.
refuteverbTo prove that a statement, theory, or accusation is wrong or false through argument or evidence.New DNA evidence refuted the original theory about the crime.
robustadjectiveStrong, healthy, and vigorous; able to withstand hardship or wear without failing.The hikers were surprised by how robust the old wooden bridge still was.
skepticaladjectiveNot easily convinced that a claim is true or reliable.I was skeptical of the promise until I saw the results.
substantiateverbTo provide evidence or proof to support a claim, theory, or statement.The researchers could not substantiate their initial hypothesis with the data collected.
superfluousadjectiveMore than is needed or wanted; unnecessary, especially because it adds nothing useful.The editor cut every superfluous adjective from the final draft of the article.
tenableadjectiveAble to be defended or maintained against argument or attack, as an idea, position, or plan.The lawyer argued that her client's version of events was the only tenable explanation.
unequivocaladjectiveLeaving no doubt; expressed or stated in a way that admits only one interpretation.Her unequivocal refusal ended any hope that she might change her mind later.

Frequently asked questions

Does the GMAT have a vocabulary section?

There's no standalone vocabulary section, but a strong academic vocabulary helps with reading comprehension and sentence correction questions throughout the Verbal section.