Synonyms and Antonyms of unsound
- Disgruntled relatives tried to prove that the woman was of unsound mind when she made her will.
balmy, bats, batty, bedlam, bonkers, brainsick, certifiable, crackbrained, cracked, crackpot, crazed, crazy, cuckoo, daffy, daft, demented, deranged, gaga, insane, kooky (also kookie), loco [slang], loony (also looney), lunatic, mad, maniacal (also maniac), mental, non compos mentis, nuts, nutty, psychotic, screwy, unbalanced, unhinged, wacky (also whacky)
around the bend, off one's gourd, off one's head, off one's rocker, out of one's head (or mind)
- an unsound and pernicious stereotype
- It is clearly unsound to argue that just because a scientific explanation for that phenomenon does not currently exist, no such explanation is possible.
- an unsound horse that will have to be disqualified from the race
out of sorts, under the weather
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).