218 entries under foolish topic. ×

4
violent(adjective, rough, wild, crazy)
3
aberrant(adjective, hot, anxious, unreasonable)
3
cockamamie(adjective, weak, simple, silly)
3
eccentric(adjective, keen, warm, unusual, wild)
3
frivolous(adjective, simple, stupid, crazy)
3
impractical(adjective, wrong, wild, silly)
3
inattentive(adjective, careless, stupid, vague)
3
nuts(adjective, wrong, rough, wild, silly)
3
pointless(adjective, simple, silly, stupid)
3
potty(adjective, wild, silly, crazy)
3
puerile(adjective, careless, silly, stupid)
3
wrong(adjective, wild, unreasonable, senseless)
2
bonkers(adjective, silly, crazy, mad)
2
cockamamy(silly, thoughtless, unwise, unintelligent)
2
daffy(adjective, weak, simple, silly)
2
flaky(adjective, informal, unusual, wild, strange)
2
giddy(adjective, weak, simple, rough)
2
goofy(strange, silly, stupid, senseless)
2
half-baked(weak, simple, silly, thoughtless)
2
harebrained(adjective, weak, simple, careless, wild)
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APASmart Define. (2015). irrational thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/irrational/thesaurus/synonyms
ChicagoSmart Define. 2015. "irrational thesaurus" https://smartdefine.org/irrational/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, irrational thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/irrational/thesaurus/synonyms>.
MLASmart Define. "irrational thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/irrational/thesaurus/synonyms>