207 entries under foolish topic. ×

7
fruity(adjective, slang, silly, insane)
7
irresponsible(adjective, wrong, wild, silly)
7
madcap(adjective, rough, silly, crazy)
7
moonstruck(adjective, silly, stupid, insane)
7
psycho(noun, adjective, wild, silly)
6
cockeyed(adjective, knowledge, ability, informal, silly)
6
hare-brained(adjective, silly, crazy, zany)
6
impetuous(adjective, rough, passionate, violent, cruel)
6
puerile(adjective, silly, unwise, unintelligent)
6
unrestrained(adjective, rough, violent, cruel)
6
unthinking(adjective, unreasonable, illogical)
6
zany(adjective, weak, simple, knowledge, ability)
5
capricious(adjective, characteristic, person, lively)
5
chaotic(adjective, rough, wild, crazy)
5
eager(adjective, rough, crazy, irrational)
5
freaky(adjective, characteristic, person, unusual, strange)
5
ill-advised(adjective, weak, simple, silly)
5
ill-considered(adjective, weak, simple, silly)
5
indiscreet(adjective, weak, simple, silly)
5
outlandish(adjective, unusual, strange, silly)
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APASmart Define. (2016). mad thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/mad/thesaurus/synonyms
ChicagoSmart Define. 2016. "mad thesaurus" https://smartdefine.org/mad/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, mad thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/mad/thesaurus/synonyms>.
MLASmart Define. "mad thesaurus" 24 March 2016. Web. 26 September 2026. <https://smartdefine.org/mad/thesaurus/synonyms>