100 entries under foolish topic. ×

1
daft(adjective, wrong, wild, strange, silly)
1
derailed(adjective, wrong, wild, silly)
1
derisory(silly, fantastic, absurd, pathetic)
1
fatuous(adjective, wrong, wild, strange, silly)
1
foolhardy(silly, fantastic, unwise, impractical)
1
frenzied(adjective, wrong, wild, silly)
1
goofy(strange, silly, fantastic, odd)
1
half-baked(careless, silly, stupid, fantastic)
1
harebrained(careless, silly, stupid, fantastic)
1
ill-conceived(silly, fantastic, unwise, impractical)
1
impracticable(silly, fantastic, unwise, impractical)
1
impractical(adjective, wrong, happy, perfect, wild)
1
imprudent(adjective, wild, strange, silly)
1
irresponsible(adjective, wrong, wild, strange, silly)
1
lunatic(adjective, wrong, wild, silly)
1
mad as a hatter(expression, idiom, wrong, wild, silly)
1
mental(unusual, silly, stupid, unwise)
1
nutty as fruitcake(expression, idiom, wrong, wild, silly)
1
of unsound mind(expression, idiom, stupid, crazy)
1
out of all reason(expression, idiom, silly, fantastic)
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APASmart Define. (2016). bizarre thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/bizarre/thesaurus/synonyms
ChicagoSmart Define. 2016. "bizarre thesaurus" https://smartdefine.org/bizarre/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, bizarre thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/bizarre/thesaurus/synonyms>.
MLASmart Define. "bizarre thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/bizarre/thesaurus/synonyms>