Synonyms|605Antonyms|74|Broader|8Narrower|0Related|641

58 entries under expression topic. ×

12
non compos mentis(adjective, idiom, law, unstable)
11
of unsound mind(adjective, idiom, silly, mad)
8
not all there(adjective, idiom, unstable, disturbed)
7
mentally ill(adjective, sane, unwell, cuckoo)
6
out to lunch(adjective, idiom, silly, mad)
5
very upset(upset, mad, insane)
3
beside oneself(adjective, idiom, upset, violent)
3
nutty as fruitcake(idiom, silly, foolish, mad)
2
around the bend(adjective, idiom, wrong, confused)
2
bats in the belfry(idiom, silly, foolish, mad)
2
bereft of reason(idiom, insanity)
2
crazy as a loon(adjective, idiom, crazy, confused)
2
fit to be tied(idiom, violent, fierce, unreasonable)
2
flipped out(silly, crazy, mad, insane)
2
freaked out(silly, foolish, crazy, mad)
2
mad as a March hare(idiom, silly, foolish, mad)
2
mad as a hatter(adjective, idiom, silly, foolish)
2
mentally strange(silly, foolish, mad, insane)
2
not right(idiom, insanity)
2
round the bend(idiom, silly, foolish, mad)
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APASmart Define. (2015). demented thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/demented/thesaurus/synonyms
ChicagoSmart Define. 2015. "demented thesaurus" https://smartdefine.org/demented/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, demented thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/demented/thesaurus/synonyms>.
MLASmart Define. "demented thesaurus" 17 July 2015. Web. 22 September 2026. <https://smartdefine.org/demented/thesaurus/synonyms>