Groups

abridge, compendium, cursory, curtail, syllabus, synopsis, terse

apace, abrupt, headlong, impetuous, precipitate

abet, advocate, ancillary, bolster, corroborate, countenance, espouse, mainstay, munificent, proponent, stalwart, sustenance

bilious, dudgeon, irascible, pettish, petulant, pique, querulous, umbrage, waspish bilious, dudgeon, irascible, pettish, petulant, pique, querulous, umbrage, waspish

dilettante, fledgling, neophyte, novitiate, proselyte, tyro

burgeoning, callow, engender, inchoate, incipient, nascent

acerbic, acidulous, acrimonious, asperity, caustic, mordacious, mordant, trenchant

banal, fatuous, hackneyed, insipid, mundane, pedestrian, platitude, prosaic, quotidian, trite

audacious, courageous, dauntless

bacchanalian, debauchery, depraved, dissipated, iniquity, libertine, libidinous, licentious, reprobate, ribald, salacious, sordid, turpitude

capricious, mercurial volatile

counterpart, emulate, facsimile, factitious, paradigm, precursor, quintessence, simulated, vicarious

aspersion, belittle, berate, calumny, castigate, decry, defamation, denounce, deride/derisive, diatribe, disparage, excoriate, gainsay, harangue, impugn, inveigh, lambaste, objurgate, obloquy, opprobrium, pillory, rebuke, remonstrate, reprehend, reprove, revile, tirade, vituperate

bereave, cadaver, defunct, demise, dolorous, elegy, knell, lament, macabre, moribund, obsequies, sepulchral, wraith

abnegate, abstain, ascetic, spartan, stoic, temperate

authoritarian, despotic, dogmatic, hegemonic, imperious, peremptory, tyrannical

abstruse, ambiguous, arcane, bemusing, cryptic, enigmatic, esoteric, inscrutable, obscure, opaque, paradoxical, perplexing, recondite, turbid

defile, fetid, invidious, noisome, odious, putrid, rebarbative

articulate, cogent, eloquent, evident, limpid, lucid, pellucid

aberrant, anachronism, anomalous, discrete, eclectic, esoteric, iconoclast

abash, chagrin, compunction, contrition, diffidence, expiate, foible, gaucherie, rue

equitable, equity, tantamount

apocryphal, canard, chicanery, dissemble, duplicity, equivocate, erroneous, ersatz, fallacious, feigned, guile, mendacious/mendacity, perfidy, prevaricate, specious, spurious

conjugal, con-sanguine, distaff, endogamous, filial, fratricide, progenitor, scion

ardor/ardent, doctrinaire, fervid, partisan, tendentious, zealot

absolve, acquit, exculpate, exonerate, expiate, palliate, redress, vindicate

chortle, droll, facetious, flippant, gibe, jocular, levity, ludicrous, raillery, riposte, simper

abatement, aperture, fissure, hiatus, interregnum, interstice, lull, orifice, rent, respite, rift

altruistic, beneficent, clement, largess, magnanimous, munificent, philanthropic, unstinting

avaricious, covetous, mercenary, miserly, penurious, rapacious, venal

asperity, baleful, dour, fell, malevolent, mordant, sardonic, scathing, truculent, vitriolic, vituperation

baleful, baneful, deleterious, inimical, injurious, insidious, minatory, perfidious, pernicious

cacophony, din, dissonant, raucous, strident

abhorrence, anathema, antagonism, antipathy, detestation, enmity, loathing, malice, odium, rancor

beneficial, salubrious, salutary

dither, oscillate, teeter, vacillate, waver

antithetic, churlish, curmudgeon, irascible, malevolent, misanthropic, truculent, vindictive

credulous, gullible, ingenuous, naive, novitiate, tyro

disingenuous, dissemble, fulsome, ostensible, unctuous

 appraise, ascertain, assay, descry, peruse

indolent, inert, lackadaisical, languid, lassitude, lethargic, phlegmatic, quiescent, slothful, torpid

adventitious, amulet, auspicious, fortuitous, kismet, optimum, portentous, propitiate, propitious, providential, talisman

admonish, cavil, belabor, enjoin, exhort, harangue, hector, martinet, remonstrate, reproof

fetid, noisome, noxious

askance, awry, careen, carom, circuitous, circumvent, gyrate, labyrinth, meander, oblique, serrated, sidle, sinuous, undulating, vortex

bombastic, circumlocution, garrulous, grandiloquent, loquacious, periphrastic, prolix, rhetoric, turgid, verbose

ameliorate, appease, assuage, defer, mitigate, mollify, placate, propitiate, satiate, slake, sooth

 euphonious, harmonic, melodious, sonorous

destitute, esurient, impecunious, indigent

acclaim, accolade, aggrandize, encomium, eulogize, extol, fawn, laud/laudatory, venerate/veneration

augur, auspice, fey, harbinger, portentous, presage, prescient, prognostic

discomfort, encumber, fetter, forfend, hinder, impede, inhibit, occlude

astute, canny, erudite, perspicacious

disconsolate, doleful, dolor, elegiac, forlorn, lament, lugubrious, melancholy, morose, plaintive, threnody

implacable, inexorable, intractable, intransigent, obdurate, obstinate, recalcitrant, refractory, renitent, untoward, vexing

compendious, curt, laconic, pithy, succinct, taciturn

anachronism, antecede, antedate, anterior, archaic, diurnal, eon, ephemeral, epoch, fortnight, millennium, penultimate, synchronous, temporal

craven, diffident, pusillanimous, recreant, timorous, trepidation

candor/candid, fealty, frankness, indisputable, indubitable, legitimate, probity, sincere, veracious, verity

aberration, anomaly, iconoclast, idiosyncrasy

ambulatory, itinerant, peripatetic

discursive, expatiate, forage, itinerant, peregrination, peripatetic, sojourn

adulterate, enervate, exacerbate, inhibit, obviate, stultify, undermine, vitiate

adage, aphorism, apothegm, axiom, bromide, dictum, epigram, platitude, sententious, truism

abeyance, abjure, abnegation, abortive, abrogate, decamp, demur, recant, recidivism, remission, renege, rescind, retrograde