90 entries under foolish topic. ×

4
raving(adjective, upset, stupid, hot)
4
screwball(adjective, silly, mad, insane)
4
unsound(adjective, simple, crazy, ill)
4
wacky(adjective, simple, silly, mad)
3
eccentric(adjective, unusual, strange, silly)
3
goofy(adjective, silly, unwise)
3
kooky(adjective, strange, silly, mad)
3
odd(unusual, strange, silly, unwise)
2
bats in the belfry(expression, idiom, silly, mad)
2
dippy(adjective, silly, mad, insane)
2
freaked out(expression, silly, mad, insane)
2
fruity(silly, mad, insane, unwise)
2
mad as a March hare(expression, idiom, silly, mad)
2
mentally strange(expression, silly, mad, insane)
2
nutty as fruitcake(expression, idiom, silly, mad)
2
psychopathic(adjective, silly, stupid, cuckoo)
2
raging(silly, stupid)
2
round the bend(expression, idiom, silly, mad)
2
schizo(adjective, silly, mad, insane)
2
schizophrenic(adjective, silly, stupid, hacked)
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APASmart Define. (2015). unhinged thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unhinged/thesaurus/synonyms
ChicagoSmart Define. 2015. "unhinged thesaurus" https://smartdefine.org/unhinged/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, unhinged thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unhinged/thesaurus/synonyms>.
MLASmart Define. "unhinged thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/unhinged/thesaurus/synonyms>