Synonyms|165Antonyms|1|Broader|0Narrower|0Related|131
1
crazy as a loon(expression, adjective, idiom, crazy, sick)
1
delirious
1
dullard
1
foolish
1
hysterical
1
idiot
1
idiotic
1
loopy
1
mad as a hatter(expression, adjective, idiom, crazy, sick)
1
madman
1
manic-depressive
1
meshuga
1
nutty as a fruitcake(expression, adjective, idiom, crazy, sick)
1
out of one's mind(adjective, idiom, sane, unwell)
1
potty
1
schizoid
1
sick(crazy, crackers)
1
sick in the head(expression, adjective, idiom, crazy, sick)
1
strange
1
wacko
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APASmart Define. (2015). mentally ill thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/mentally_ill/thesaurus/synonyms
ChicagoSmart Define. 2015. "mentally ill thesaurus" https://smartdefine.org/mentally_ill/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, mentally ill thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/mentally_ill/thesaurus/synonyms>.
MLASmart Define. "mentally ill thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/mentally_ill/thesaurus/synonyms>