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deficient - 20 thesaurus results
| Main Entry: | deficient |
| Part of Speech: | adjective |
| Definition: | imperfect, inadequate |
| Synonyms: | amiss, bad, damaged, defective, exiguous, faulty, impaired, incomplete, inferior, infrequent, injured, insufficient, lacking, meager, rare, scanty*, scarce, second fiddle*, second string, short, shy, sketchy, skimpy, unequal, unfinished, unsatisfactory, wanting, weak, flawed, found wanting, marred, not cut out for, not enough, not make it, not up to scratch, outta gas, scant, third string, unassembled |
| Notes: | defective means having a defect or fault, while deficient means inadequate or lacking in amount or degree |
| Antonyms: | adequate, ample, enough, excessive, faultless, flawless, perfect, satisfactory, sufficient, superfluous |
* = informal/non-formal usage
| Main Entry: | defective |
| Part of Speech: | adjective |
| Definition: | broken, not working |
| Synonyms: | abnormal, amiss, damaged, deficient, faulty, impaired, imperfect, inadequate, incomplete, injured, insufficient, lacking, out of order, poor, sick, unfinished, unhealthy, unsound, wanting, blemished, flawed, on the bum, seconds, subnormal |
| Antonyms: | excellent, faultless, flawless, perfect, unbroken |
| Main Entry: | destitute |
| Part of Speech: | adjective |
| Definition: | down and out; wanting |
| Synonyms: | bankrupt, bereft, deficient, depleted, drained, empty, exhausted, flat*, impecunious, impoverished, indigent, insolvent, lacking, needy, penniless, penurious, poor, poverty-stricken, stony, strapped, stripped, without, beggared, busted, dead broke, deprived of, devoid of, dirt poor, divested, flat broke, in need of, moneyless, necessitous, on the breadline, on the rocks, pinched, played out, totaled, wiped out |
| Antonyms: | lucky, prosperous, rich, secure, wealthy |
* = informal/non-formal usage
| Main Entry: | devoid |
| Part of Speech: | adjective |
| Definition: | empty, wanting |
| Synonyms: | bare, barren, bereft, deficient, destitute, innocent, lacking, needed, vacant, void, without, denuded, free from, sans, unprovided with |
| Antonyms: | complete, filled, full |
| Main Entry: | dissatisfactory |
| Part of Speech: | adjective |
| Definition: | unsatisfactory |
| Synonyms: | bad, damaged, deficient, disappointing, distressing, inadequate, insufficient, lame, mediocre, offensive, poor, rotten, unacceptable, unsuitable, unworthy, useless, displeasing, junky, no good, not satisfying, not up to par, unsatisfying |
| Main Entry: | failing |
| Part of Speech: | adjective |
| Definition: | not well, weak |
| Synonyms: | defeated, deficient, faint, feeble, inadequate, insufficient, scanty, scarce, short, shy, unavailing, unsuccessful, vain, wanting, declining, scant, unprosperous, unsufficient, unthriving |
| Antonyms: | healthy, strong, thriving, well, ok, rebounding |
| Main Entry: | faulty |
| Part of Speech: | adjective |
| Definition: | not working; incorrect |
| Synonyms: | adulterated, amiss, awry, bad, below par, blamable, broken, cracked, damaged, debased, defective, deficient, distorted, erroneous, fallacious, fallible, false, frail, impaired, imperfect, inaccurate, inadequate, incomplete, inexact, injured, insufficient, invalid, lame, leaky, lemon, maimed, malformed, out of order, rank, sick, tainted, unfit, unreliable, unsound, weak, wrong, blemished, botched, flawed, imprecise, malfunctioning, marred, unretentive, warped |
| Antonyms: | accurate, correct, perfect, sound, strong, working |
| Main Entry: | imperfect |
| Part of Speech: | adjective |
| Definition: | flawed |
| Synonyms: | amiss, below par, broken, damaged, defective, deficient, dud*, faulty, garbage*, immature, impaired, incomplete, inexact, injured, junk*, lemon*, limited, low, minus, partial, patchy, rudimentary, sick, sketchy, two-bit*, undeveloped, unfinished, unsound, vicious, bottom-of-barrel, disfigured, few bugs, marred, schlocky, warped |
| Antonyms: | excellent, faultless, finished, perfect, pure, unblemished, unflawed |
* = informal/non-formal usage
| Main Entry: | inadequate |
| Part of Speech: | adjective |
| Definition: | defective, insufficient, incompetent |
| Synonyms: | bare, barren, bush-league*, deficient, depleted, dry, failing, faulty, feeble, glitch*, imperfect, impotent, inapt, incapable, incommensurate, incompetent, incomplete, insubstantial, junk*, lacking, lame*, lemon*, lousy, low, meager, minus, miserly, parsimonious, poor, scanty, scarce, short, shy*, sketchy*, skimpy*, small, spare, sparse, sterile, stunted*, thin*, unequal, unproductive, unqualified, weak, found wanting, inappreciable, inconsiderable, niggardly, not enough, stinted, too little |
| Antonyms: | able, adequate, competent, enough, sufficient |
* = informal/non-formal usage
| Main Entry: | incomplete |
| Part of Speech: | adjective |
| Definition: | unfinished, wanting |
| Synonyms: | broken, crude, defective, deficient, fractional, fragmentary, immature, imperfect, inadequate, incoherent, insufficient, lacking, meager, part, partial, rough, rude, rudimentary, short, sketchy, undeveloped, undone, unpolished, abridged, expurgated, garbled, half-done, unaccomplished, unconsummated, under construction, unexecuted |
| Antonyms: | accomplished, complete, finished, perfect |
| Main Entry: | inconclusive |
| Part of Speech: | adjective |
| Definition: | up in the air |
| Synonyms: | ambiguous, deficient, incomplete, indecisive, indeterminate, lacking, open, uncertain, unconvincing, undecided, uneventful, unfinished, unsatisfactory, unsettled, vague, unfateful |
| Antonyms: | certain, conclusive, decisive, definite, sure |
| Main Entry: | insufficient |
| Part of Speech: | adjective |
| Definition: | not enough; lacking |
| Synonyms: | bereft, defective, deficient, destitute, devoid, drained, dry, failing, faulty, imperfect, inadequate, incapable, incommensurate, incompetent, incomplete, infrequent, meager, minus, poor, rare, scarce, short, shy, thin*, unfinished, unqualified, unsatisfactory, wanting, out of, scant, short of, too little too late, unample, unfitted |
| Antonyms: | adequate, ample, enough, sufficient |
* = informal/non-formal usage
| Main Entry: | less |
| Part of Speech: | adjective |
| Definition: | smaller, inferior |
| Synonyms: | beneath, deficient, depressed, lacking, lesser, limited, lower, minor, minus, negative, reduced, secondary, shorter, subordinate, unsubstantial, without, declined, diminished, excepting, fewer, not as great, shortened, slighter, subtracting |
| Antonyms: | more, superior, bigger |
| Main Entry: | piddly |
| Part of Speech: | adjective |
| Definition: | meager, trivial |
| Synonyms: | barren, deficient, flimsy, insubstantial, insufficient, little, measly*, mere, microscopic, minute, negligible, paltry, petty, puny, short, skimpy, slight, small, sparse, superficial, two-bit*, unproductive, worthless, diddly, inconsiderable, rinky-dink, scant, scrimpy, too little too late |
* = informal/non-formal usage
| Main Entry: | scant/scanty |
| Part of Speech: | adjective |
| Definition: | inadequate |
| Synonyms: | bare, close, deficient, exiguous, failing, insufficient, limited, little, meager, minimal, narrow, poor, rare, restricted, short, shy, skimpy, slender, spare, sparing, sparse, stingy, thin, tight, wanting, barely sufficient, scrimpy |
| Antonyms: | abundant, adequate, ample, covering, plentiful, substantial, sufficient |
| Main Entry: | scarce |
| Part of Speech: | adjective |
| Definition: | insufficient, infrequent |
| Synonyms: | deficient, failing, few, limited, occasional, rare, scanty, seldom, short, shy, sparse, sporadic, uncommon, unusual, wanting, at a premium, few and far between, in short supply, scant, seldom met with, semioccasional, shortened, truncated |
| Antonyms: | abundant, frequent, plentiful, sufficient |
| Main Entry: | skimpy |
| Part of Speech: | adjective |
| Definition: | sparse, inadequate |
| Synonyms: | deficient, exiguous, failing, insufficient, meager, miserly, poor, scanty, scrimp, short, shy, spare, stingy, thin, tight, wanting, niggardly, scant, scrimpy, unsufficient |
| Antonyms: | adequate, enough, generous, sufficient |
| Main Entry: | stupid |
| Part of Speech: | adjective |
| Definition: | not intelligent; irresponsible |
| Synonyms: | brainless, dazed, deficient, dense, dim, dopey*, dull, dumb, dummy*, foolish, futile, gullible, half-baked*, half-witted*, idiotic, ill-advised, inane, indiscreet, insensate, irrelevant, laughable, loser*, ludicrous, meaningless, mindless, moronic, naive, nonsensical, obtuse, pointless, puerile, rash, senseless, shortsighted, simple, simpleminded, slow, sluggish, stolid, stupefied, thick, trivial, unintelligent, unthinking, witless, doltish, imbecilic, out to lunch, thick-headed |
| Antonyms: | cognizant, intelligent, responsible, smart |
* = informal/non-formal usage
| Main Entry: | unfinished |
| Part of Speech: | adjective |
| Definition: | not completed |
| Synonyms: | amateurish, bare, crude, cut short, defective, deficient, dilettante, faulty, formless, fragmentary, half-baked*, immature, imperfect, incomplete, lacking, natural, plain, raw, rough, shapeless, sketchy, tentative, unadorned, undeveloped, undone, unpolished, unrefined, wanting, dabbling, found wanting, half-done, in the making, in the rough, not done, roughhewn, unaccomplished, unassembled, uncompleted, unconcluded, under construction, unexecuted, unfashioned, unfulfilled, unperfected |
| Antonyms: | completed, finished, polished, refined, whole |
* = informal/non-formal usage
| Main Entry: | unintelligent |
| Part of Speech: | adjective |
| Definition: | stupid |
| Synonyms: | brainless, deficient, dense, dumb, empty-headed*, foolish, half-witted*, idiotic, inane, meaningless, mindless, moronic, pointless, senseless, simple, simpleminded, slow, unthinking, witless, doltish, imbecilic, mentally deficient, mentally handicapped, not intelligent, thick-headed |
* = informal/non-formal usage
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2009 by the Philip Lief Group.
Cite This Source
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2009 by the Philip Lief Group.
Cite This Source
Copyright © 2009, Dictionary.com, LLC. All rights reserved.
