Synonyms and Antonyms of unsound
- disgruntled relatives tried to prove that the woman was of unsound mind when she made her will
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, insane, kooky (also kookie), loco [slang], loony (also looney), loony tunes (or looney tunes), lunatic, mad, maniacal (also maniac), mental, meshuga (or meshugge), moonstruck, non compos mentis, nuts, nutty, psycho, psychotic, scatty [chiefly British], screwy, unbalanced, unhinged, wacko (also whacko), wacky (also whacky), wud [chiefly Scottish]
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
amok (or amuck), ape, ballistic, bananas, berserk, nuclear
distracted, distraught, frantic, frenzied, haywire, hysterical (also hysteric), raving, wigged-out
around the bend, off one's gourd, off one's head, off one's rocker, out of one's head (or mind), out to lunch [slang]
- an unsound and pernicious stereotype
erroneous, false, inaccurate, incorrect, inexact, invalid, off, untrue, untruthful, wrong