148 entries under silly topic. ×

2
imprudent(weak, simple, foolish, stupid)
2
incongruous(adjective, false, stupid, insignificant)
2
indiscreet(weak, simple, foolish, thoughtless)
2
nuts(adjective, foolish, stupid, unwise)
2
potty(foolish, unwise)
2
rash(thoughtless, unwise)
2
screwball(foolish, unwise)
2
short-sighted(adjective, weak, simple, foolish)
2
trivial(adjective, stupid, insignificant, ridiculous)
2
zany(weak, simple, foolish, thoughtless)
1
barmy(adjective, foolish, unwise)
1
beyond all reason(expression, idiom, foolish, fantastic)
1
bizarre(adjective, wrong, wild, strange)
1
bonkers(adjective, foolish, unwise)
1
cockamamy(thoughtless, unwise)
1
cracked(adjective, wrong, wild, foolish)
1
crazed(adjective, wrong, wild, foolish)
1
derailed(adjective, wrong, wild, foolish)
1
deranged(adjective, wrong, wild, foolish)
1
derisory(foolish, fantastic, unwise, impractical)
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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>