Synonyms and Antonyms of unsound
1 having or showing a very abnormal or sick state of mind disgruntled relatives tried to prove that the woman was of unsound mind when she made her will Synonyms of unsound balmy, barmy [chiefly British], bats, batty, bedlam, bonkers, brainsick, bughouse [slang], certifiable, crackbrained, cracked, crackers, crackpot, cranky [dialect], crazed, crazy, cuckoo, daffy, daft, demented, deranged, fruity [slang], gaga, haywire, kooky (also kookie), loco [slang], loony (also looney), loony tunes (or looney tunes), lunatic, mad, maniacal (also maniac), mental, meshuga (or meshugge also meshugah or meshuggah), moonstruck, non compos mentis, nuts, nutty, psycho, psychotic, scatty [chiefly British], screwy, unbalanced, unhinged, insane, wacko (also whacko), wacky (also whacky), wud [chiefly Scottish]Words Related to unsound dotty, fey, loopy, off, potty [chiefly British], teched (or tetched), touched; aberrant, delirious, delusional, delusionary, disordered, disturbed, neurotic, obsessive-compulsive, paranoiac (also paranoic), paranoid (also paranoidal), schizoid, schizophrenic, sociopathic; eccentric, odd, oddball, pixilated (also pixillated), queer, strange; foolish, senseless, witless; irrational, unreasonable; amok (or amuck), ape, ballistic, bananas, berserk, nuclear; depressed; distracted, distraught, frantic, frenzied, haywire, hysterical (also hysteric), raving, wigged-out; fixated, monomaniac, monomaniacal, obsessedNear Antonyms of unsound clear, lucid, rational, reasonable; judicious, sensible, wise; healthy, normal, well-adjusted; unneuroticAntonyms of unsound balanced, compos mentis, sane, sound, uncrazy
2 not being in agreement with what is true an unsound and pernicious stereotype Synonyms of unsound erroneous, inaccurate, incorrect, inexact, invalid, off, false, untrue, untruthful, wrongWords Related to unsound counterfactual; specious, spurious; deceptive, delusive, delusory, distorted, fallacious, fictitious, illusory, misleading; amiss, askew, awry; deceitful, dishonest, fraudulent, lying, mendacious; unconfirmed, unproven, untested; fabricated, invented, made-up, trumped-upNear Antonyms of unsound confirmed, demonstrated, established, proven, tested; faultless, flawless, impeccable, letter-perfect, perfectAntonyms of unsound accurate, correct, errorless, exact, factual, precise, proper, right, sound, true, valid, veracious
3 not using or following good reasoning it is clearly unsound to argue that just because a scientific explanation for that phenomenon does not currently exist, no such explanation is possible Synonyms of unsound fallacious, illegitimate, inconsequent, inconsequential, invalid, irrational, nonrational, unreasonable, unreasoning, illogical, weakWords Related to unsound eristic (also eristical), misleading, sophistic (or sophistical), specious; half-baked, ill-advised, misguided, unconsidered, unreasoned; inconsistent; absurd, asinine, foolish, meaningless, nonsensical, preposterous, reasonless, senseless, silly; Kafkaesque, odd, peculiar, strange, surreal, unusual, weird; insane, mad, nutty, wacky (also whacky); disordered, disorganized, rambling, random; unconvincing; inexplicable, unaccountable, unexplainableNear Antonyms of unsound commonsense, sane, sensible, sober, wise; enlightened, informed, just, justified, reasoned; ordered, organized; clear, cogent, compelling, convincing, credible, persuasive, plausible, satisfying, solid; certain, sure, true; confirmed, corroborated, demonstrated, established, substantiated, validatedAntonyms of unsound logical, rational, reasonable, sound, valid, well-founded, well-grounded
4 temporarily suffering from a disorder of the body an unsound horse that will have to be disqualified from the race Synonyms of unsound ailing, bad, down, ill, indisposed, peaked, peaky, poorly, punk, run-down, sickened, unhealthy, sick, unwellWords Related to unsound symptomatic; cruddy, lousy, seedy, sickish; nauseated, nauseous, qualmish, queasy (also queazy), squeamish; airsick, carsick, seasick; dizzy, light-headed, shaky, woozy; achy, feverish; diseased, disordered; decrepit, feeble, fragile, frail, infirm, invalid, sickly, weak, weakly; afflicted, troubled; challenged, debilitated, disabled, halt, incapacitated, lame; hypochondriac, hypochondriacalNear Antonyms of unsound able-bodied, conditioned, fit, well-conditioned; cured; better, convalescing, improved, mending, recovering, recuperating, rehabilitated; hardy, hearty, lusty, robust, rugged, stalwart, strong, tough; blooming, bouncing, chipper, flourishing, flush, thrivingAntonyms of unsound hale, healthful, healthy, sound, well, whole, wholesome
Seen and Heard
What made you want to look up unsound? Please tell us where you read or heard it (including the quote, if possible).