30 entries under foolish topic. ×

21
crazy(noun, adjective, person, mad)
20
loony(noun, adjective, person, informal)
8
absurd(adjective, crazy, mad, odd)
7
nonsensical(adjective, crazy, mad, odd)
6
foolish(adjective, impractical, half-baked, doomed)
4
dotty
4
goofy(adjective, impractical, half-baked, doomed)
4
idiotic(adjective, impractical, half-baked, doomed)
4
inane(adjective, impractical, half-baked, doomed)
4
moronic(adjective, impractical, half-baked, doomed)
3
asinine
3
blockheaded(adjective, impractical, half-baked, doomed)
3
brainless(adjective, impractical, half-baked, doomed)
3
dumb(adjective, impractical, half-baked, doomed)
3
ignorant(adjective, impractical, half-baked, doomed)
3
imbecilic(adjective, impractical, half-baked, doomed)
3
jackass(noun, adjective, fool)
3
nitwit(noun, adjective, fool)
3
stupid
2
dim-witted
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APASmart Define. (2015). crackpot thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/crackpot/thesaurus/synonyms
ChicagoSmart Define. 2015. "crackpot thesaurus" https://smartdefine.org/crackpot/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, crackpot thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/crackpot/thesaurus/synonyms>.
MLASmart Define. "crackpot thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/crackpot/thesaurus/synonyms>