127 entries under foolish topic. ×

1
harebrained(silly, stupid, fantastic, absurd)
1
hotheaded(thoughtless, unwise, risky, imprudent)
1
idiotic(silly, fantastic, unwise, impractical)
1
ignorant(adjective, simple, stupid, crazy)
1
ill-conceived(silly, fantastic, unwise, half-baked)
1
immature(stupid, rash, absurd, risky)
1
incautious(thoughtless, unwise, risky, imprudent)
1
inconsiderate(rude, insignificant, unimportant, trivial)
1
insane(silly, fantastic, unwise, impractical)
1
irrational(silly, stupid, absurd, unwise)
1
irresponsible(silly, stupid, fantastic, absurd)
1
loony(silly, fantastic, unwise, impractical)
1
ludicrous(wrong, false, stupid, awkward)
1
nonsensical(silly, stupid, fantastic, absurd)
1
out of all reason(expression, idiom, silly, fantastic)
1
overhasty(thoughtless, unwise, risky, imprudent)
1
peculiar(wrong, silly, fantastic, improper)
1
preposterous(wrong, false, stupid, awkward)
1
puerile(silly, stupid, fantastic, absurd)
1
quixotic(silly, fantastic, unwise, impractical)
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APASmart Define. (2016). inappropriate thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/inappropriate/thesaurus/synonyms
ChicagoSmart Define. 2016. "inappropriate thesaurus" https://smartdefine.org/inappropriate/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, inappropriate thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/inappropriate/thesaurus/synonyms>.
MLASmart Define. "inappropriate thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/inappropriate/thesaurus/synonyms>