141 entries under foolish topic. ×

2
potty(silly, unwise)
2
screwball(silly, unwise)
2
short-sighted(adjective, weak, simple, silly)
2
slow(stupid, impractical, half-baked, doomed)
2
tomfool
2
zany(weak, simple, silly, thoughtless)
1
barmy(adjective, silly, unwise)
1
beyond all reason(expression, idiom, silly, fantastic)
1
bizarre(adjective, wrong, wild, strange, silly)
1
bonkers(adjective, silly, unwise)
1
cracked(adjective, wrong, wild, silly)
1
crazed(adjective, wrong, wild, silly)
1
derailed(adjective, wrong, wild, silly)
1
deranged(adjective, wrong, wild, silly)
1
derisory(silly, fantastic, unwise, impractical)
1
eccentric(silly, fantastic, unwise, impractical)
1
erratic(silly, unwise)
1
fantastic(weak, simple, silly, thoughtless)
1
feebleminded(weak, simple, silly, thoughtless)
1
frenzied(adjective, wrong, wild, silly)
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APASmart Define. (2015). fatuous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/fatuous/thesaurus/synonyms
ChicagoSmart Define. 2015. "fatuous thesaurus" https://smartdefine.org/fatuous/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, fatuous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/fatuous/thesaurus/synonyms>.
MLASmart Define. "fatuous thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/fatuous/thesaurus/synonyms>