161 entries under foolish topic. ×

3
brainless(adjective, weak, simple, silly)
3
cockamamy(silly, thoughtless, unwise, unintelligent)
3
fallacious(adjective, unreasonable, absurd, illogical)
3
harebrained(adjective, weak, simple, wild, strange)
3
ill-advised(weak, simple, silly, thoughtless)
3
ill-conceived(silly, fantastic, unwise, impractical)
3
impracticable(adjective, silly, fantastic, unwise)
3
invalid(adjective, unreasonable, absurd, illogical)
3
quixotic(adjective, silly, fantastic, unwise)
3
unworkable(silly, fantastic, unwise, impractical)
3
witless(adjective, weak, simple, silly)
2
bonkers(adjective, simple, silly, unsound)
2
flaky(adjective, light, wrong, wild, silly)
2
jerky(adjective, light, silly, stupid)
2
kooky(adjective, weak, simple, wrong, wild)
2
lunatic(adjective, weak, simple, wild, silly)
2
maniacal(adjective, mind, think, silly)
2
screwball(adjective, silly, unwise)
2
tomfool
2
unfounded(adjective, unreasonable, illogical, defended)
10 years ago|23k views|share |citing 
APASmart Define. (2016). ridiculous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/ridiculous/thesaurus/synonyms
ChicagoSmart Define. 2016. "ridiculous thesaurus" https://smartdefine.org/ridiculous/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, ridiculous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/ridiculous/thesaurus/synonyms>.
MLASmart Define. "ridiculous thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/ridiculous/thesaurus/synonyms>