207 entries under foolish topic. ×

10
illogical(adjective, characteristic, wrong, false, silly)
10
imprudent(adjective, characteristic, weak, simple, wild)
10
potty(adjective, wild, silly, crazy)
10
enthusiastic(adjective, concern, passionate, silly)
9
daffy(adjective, weak, simple, informal, silly)
9
goofy(adjective, silly, unwise)
9
loopy(adjective, knowledge, ability, informal)
9
brainless(adjective, weak, simple, silly)
9
harebrained(adjective, weak, simple, knowledge, ability)
9
invalid(adjective, characteristic, crazy, unreasonable)
9
uncontrolled(adjective, characteristic, rough, anger, wild)
9
unwise(adjective, weak, simple, wrong, wild)
8
zealous(adjective, love, concern, passionate, enthusiastic)
7
extravagant(adjective, rough, strange, crazy)
7
keen(adjective, love, concern, passionate, enthusiastic)
7
mindless(adjective, dull, simple, wrong, silly)
7
thoughtless(adjective, silly, stupid, senseless)
7
aberrant(adjective, characteristic, hot, crazy)
7
avid(adjective, love, rough, passionate, enthusiastic)
7
flaky(adjective, wrong, unusual, passionate, violent)
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APASmart Define. (2016). mad thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/mad/thesaurus/synonyms
ChicagoSmart Define. 2016. "mad thesaurus" https://smartdefine.org/mad/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, mad thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/mad/thesaurus/synonyms>.
MLASmart Define. "mad thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/mad/thesaurus/synonyms>