4
maniac(adjective, crazy, mad, insane, irrational)
4
maniacal(adjective, sane)
4
mentally ill(adjective, sane)
4
moonstruck(adjective, sane)
4
of unsound mind(expression, adjective, idiom, foolish, fantastic)
4
psychotic(adjective, crazy, mad, hysterical, crazed)
4
unsound(adjective, foolish, crazy, mad, insane)
3
avocados(noun, fruits)
3
brainsick(adjective, sane)
3
bughouse
3
certifiable
3
goofy
3
meshuga
3
off(adjective, sane)
3
off one's rocker(adjective, idiom, sane)
3
unhinged
3
wrong(adjective, sane)
2
bugs
2
delirious
2
doolally(adjective, slang, crazy, mad)
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APASmart Define. (2015). bananas thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/bananas/thesaurus/synonyms
ChicagoSmart Define. 2015. "bananas thesaurus" https://smartdefine.org/bananas/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, bananas thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/bananas/thesaurus/synonyms>.
MLASmart Define. "bananas thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/bananas/thesaurus/synonyms>