GRE guide · Reference · Vocabulary list 02

GRE vocabulary list 02: 42 high-frequency words

This is the second list in the series that began withlist 01. The method is the same: 42 high-frequency words sorted into meaning clusters, so each word arrives attached to the words it competes with on test day. Every entry carries a definition, an example sentence, and the synonyms that also score.

By Devin Marsh, editorPublished 1 August 2026Last checked 1 August 202642 words across 8 clustersReading time: 9 minutes

The words are chosen editorially; the claims about how GRE Verbal uses them are checked against ETS. The byline is a masthead name, explained in full on who writes this, and the sourcing rules are set out on the standards page.

Run this list alongside a study plan from the GRE guide and test yourself against the practice bank, where words from this series appear in real text-completion stems such asthe documented biographer andthe inconclusive data.

How to use this list

Read the cluster blurb first. It names the polarity of the cluster, which is the handle your memory grabs on test day. Then cover the definition column, read the example sentence, and state the meaning in your own words before you uncover to check. One cluster per session, then a spaced review the next day.

Cluster 01

Anger and irritation

Words the GRE reaches for when a passage or stem describes a heated argument, a slight, or a short temper. The signal is conflict, and the cluster tells you how sharp.

Irateadjective
Extremely angry.
Example: “The irate customer demanded a refund and the manager’s direct line.”
Synonyms: furious, incensed, enraged, indignant
Indignantadjective
Feeling or showing anger at something perceived as unfair.
Example: “She was indignant that a colleague had quietly taken credit for her analysis.”
Synonyms: outraged, resentful, affronted, scandalized
Incensedadjective
Enraged; made extremely angry.
Example: “The editorial incensed readers on both sides of the debate.”
Synonyms: infuriated, inflamed, provoked, enraged
Irascibleadjective
Irritable and quick to anger.
Example: “The irascible professor berated any student who arrived after the bell.”
Synonyms: cantankerous, testy, prickly, choleric
Belligerentadjective
Hostile and aggressive.
Example: “After the third drink he grew belligerent and picked a fight with the bouncer.”
Synonyms: combative, pugnacious, hostile, aggressive
Cluster 02

Thrift versus excess

A polarity cluster. Stems that signal careful saving draw from the first half; stems that signal reckless spending draw from the second.

Frugaladjective
Sparing and economical with money or food.
Example: “Her frugal habits let her travel for months on a modest budget.”
Synonyms: thrifty, economical, prudent, sparing
Parsimoniousadjective
Unwilling to spend money or use resources; stingy.
Example: “The parsimonious owner refused to heat the office past sixty degrees.”
Synonyms: miserly, niggardly, stingy, tightfisted
Penuriousadjective
Extremely poor, or extremely unwilling to spend.
Example: “He lived a penurious retirement, reusing tea bags and darning socks.”
Synonyms: destitute, impecunious, miserly, pinched
Miserlyadjective
Mean or grasping with money.
Example: “The miserly uncle left a fortune he had never once let himself enjoy.”
Synonyms: stingy, parsimonious, niggardly, avaricious
Profligateadjective
Recklessly extravagant or wasteful.
Example: “The profligate heir burned through the family fortune in two years.”
Synonyms: wasteful, extravagant, dissolute, improvident
Lavishadjective
Sumptuously rich, elaborate, or luxurious.
Example: “The couple hosted a lavish reception with three bands and an ice sculpture.”
Synonyms: luxurious, opulent, sumptuous, prodigal
Cluster 03

Change and fickleness

For passages about shifting moods, drifting alliances, or anything the author wants to frame as unstable. Several of these also double as person-descriptors.

Mercurialadjective
Subject to sudden and unpredictable changes of mood.
Example: “The director’s mercurial temper kept the cast guessing until opening night.”
Synonyms: volatile, unpredictable, capricious, fickle
Capriciousadjective
Given to sudden and unaccountable changes of mood or behavior.
Example: “The capricious weather shifted from hail to sunshine within the hour.”
Synonyms: whimsical, fickle, changeable, erratic
Fickleadjective
Changing frequently, especially in affection or loyalty.
Example: “Fickle fans abandoned the team the moment its winning streak ended.”
Synonyms: inconstant, capricious, faithless, disloyal
Vacillateverb
To waver between different opinions or actions.
Example: “The committee vacillated for weeks between cutting the budget and raising dues.”
Synonyms: waver, dither, fluctuate, hesitate
Proteanadjective
Able to change frequently or easily; extremely variable.
Example: “The actor’s protean range let him play a king one week and a clown the next.”
Synonyms: versatile, adaptable, changeable, fluid
Cluster 04

Fear and caution

Surface when a stem signals worry before an event, nervousness in a person, or a challenge that looks too large to meet.

Apprehensiveadjective
Anxious or fearful that something bad will happen.
Example: “Apprehensive about the move, she reread the lease three times before signing.”
Synonyms: uneasy, anxious, fearful, worried
Timorousadjective
Showing or suffering from nervous timidity.
Example: “The timorous intern barely whispered his question during the meeting.”
Synonyms: timid, fearful, nervous, diffident
Trepidationnoun
A feeling of fear or agitation about something that may happen.
Example: “He accepted the promotion with some trepidation about the added travel.”
Synonyms: apprehension, dread, unease, misgiving
Dauntingadjective
Seeming difficult to deal with; intimidating.
Example: “The mountain of paperwork looked daunting but took only an afternoon.”
Synonyms: intimidating, formidable, discouraging, forbidding
Formidableadjective
Inspiring fear or respect through being impressively large, powerful, or capable.
Example: “The defending champion proved a formidable opponent in the final.”
Synonyms: daunting, intimidating, redoubtable, fearsome
Cluster 05

Dull and ordinary

A dense near-synonym cluster for passages that dismiss something as flat, uninspired, or boring. The shades differ: some attack imagination, some attack flavor, some attack novelty.

Mundaneadjective
Lacking interest or excitement; dull and ordinary.
Example: “After the expedition, the mundane routines of office life felt especially flat.”
Synonyms: ordinary, humdrum, prosaic, routine
Prosaicadjective
Ordinary and unimaginative.
Example: “The reality of farm work was more prosaic than the brochure suggested.”
Synonyms: mundane, pedestrian, dull, matter-of-fact
Pedestrianadjective
Lacking inspiration or excitement; dull.
Example: “The film’s plot was pedestrian, saved only by the leads’ chemistry.”
Synonyms: ordinary, uninspired, prosaic, unimaginative
Insipidadjective
Lacking flavor, vigor, or interest.
Example: “The soup was insipid, as if the cook had forgotten the salt entirely.”
Synonyms: bland, flavorless, vapid, dull
Vapidadjective
Offering nothing that is stimulating or challenging.
Example: “The interview produced only vapid answers about teamwork and goals.”
Synonyms: insipid, bland, unimaginative, flat
Banaladjective
So lacking in originality as to be obvious and boring.
Example: “The speech drifted into banal observations about hard work paying off.”
Synonyms: trite, hackneyed, commonplace, platitudinous
Cluster 06

Worthy of praise

The positive counterparts to the criticism cluster in list 01. Reach for these when a stem or passage describes an action, a motive, or a record that deserves respect.

Laudableadjective
Deserving praise and commendation.
Example: “The charity’s laudable goal was literacy for every child in the district.”
Synonyms: commendable, praiseworthy, meritorious, admirable
Commendableadjective
Deserving praise.
Example: “Her commendable turnaround of the failing branch earned a promotion.”
Synonyms: laudable, praiseworthy, admirable, creditable
Exemplaryadjective
Serving as a desirable model; outstanding.
Example: “The student’s exemplary attendance impressed even the strictest teachers.”
Synonyms: model, outstanding, commendable, first-rate
Meritoriousadjective
Deserving reward or praise.
Example: “Promotion was based on meritorious service rather than seniority alone.”
Synonyms: commendable, praiseworthy, deserving, laudable
Estimableadjective
Worthy of great respect and admiration.
Example: “The estimable judge was known for fairness across a forty-year career.”
Synonyms: admirable, respected, worthy, venerable
Cluster 07

Harm and damage

Used in passages about pollution, bad policy, or anything with a slow corrosive effect. Watch the degree: some words mean merely unhelpful, others mean actively poisonous.

Detrimentaladjective
Tending to cause harm.
Example: “Skipping warm-ups is detrimental to performance and to joints.”
Synonyms: harmful, damaging, injurious, prejudicial
Perniciousadjective
Having a harmful effect, especially one that is gradual or subtle.
Example: “The pernicious rumor spread slowly but ruined her reputation by spring.”
Synonyms: destructive, harmful, insidious, damaging
Deleteriousadjective
Causing harm or damage.
Example: “Prolonged stress has a deleterious effect on both memory and sleep.”
Synonyms: harmful, damaging, detrimental, injurious
Inimicaladjective
Tending to obstruct or harm; hostile.
Example: “The new policy was inimical to the small studios it claimed to help.”
Synonyms: hostile, harmful, adverse, unfavorable
Noxiousadjective
Harmful, poisonous, or very unpleasant.
Example: “The noxious fumes forced an evacuation of the entire basement lab.”
Synonyms: toxic, poisonous, harmful, foul
Cluster 08

Energy and warmth

The bright, lively cluster, for stems describing enthusiasm, high spirits, or passionate belief. Several pair nicely with the stubbornness and praise clusters elsewhere in the series.

Ardentadjective
Enthusiastic or passionate.
Example: “She was an ardent supporter of the public library and rarely missed a vote on its budget.”
Synonyms: passionate, fervent, zealous, fervid
Zealousadjective
Having or showing great energy for a cause.
Example: “The zealous volunteer canvassed every door on the street before noon.”
Synonyms: fervent, passionate, avid, fervid
Ebullientadjective
Cheerful and full of energy.
Example: “The ebullient winner thanked her team, her coach, and the crowd in a single breath.”
Synonyms: exuberant, buoyant, high-spirited, elated
Effervescentadjective
Vivacious and enthusiastic.
Example: “Her effervescent hosting put every guest at ease within minutes of arriving.”
Synonyms: bubbly, vivacious, sparkling, animated
Vivaciousadjective
Attractively lively and animated.
Example: “The vivacious host kept the dinner conversation moving all evening.”
Synonyms: lively, animated, spirited, ebullient

How to actually remember these

  1. Recall, do not reread. Cover the definition, read the example sentence, and produce the meaning yourself. Rereading feels like learning and is mostly forgetting in disguise.
  2. Tie each word to its cluster. Name the cluster and you can usually retrieve the word. The cluster label is the handle your memory actually grabs.
  3. Write your own sentence. One sentence of your own is worth ten you only read. Make it specific, with a real person and a real moment.
  4. Spaced review. Same day, next day, three days later, one week later. Fold these into the daily drill from week 2 of the 8-week plan.
A note on near-synonyms

The thrift cluster is a useful warning. Frugal is a compliment and parsimonious is an insult, though the words sit one row apart. When two answers come from the same cluster, slow down and check the connotation the stem demands before you commit.

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