175 entries under foolish topic. ×

3
eccentric(adjective, silly, fantastic, ridiculous)
3
fallacious(adjective, unreasonable, absurd, irrational)
3
foolhardy(adjective, silly, stupid, fantastic)
3
futile(adjective, dull, simple, value)
3
half-baked(dull, simple, silly, stupid)
3
harebrained(adjective, weak, simple, knowledge, ability)
3
ignorant(adjective, stupid, absurd, impractical)
3
imprudent(adjective, weak, simple, severe, harsh)
3
invalid(adjective, wrong, stupid, crazy)
3
jerky(adjective, weak, simple, knowledge, slang)
3
puerile(adjective, dull, silly, stupid)
3
short-sighted(adjective, weak, simple, silly)
3
thoughtless(adjective, silly, stupid, senseless)
3
tomfool(adjective, knowledge, ability)
3
unintelligent(adjective, dull, weak, simple, silly)
2
cockamamy(silly, thoughtless, unwise, unintelligent)
2
contradictory(adjective, stupid, senseless, absurd)
2
demented(silly, crazy, mad, unreasonable)
2
ill-considered(weak, simple, silly, thoughtless)
2
indiscreet(dull, weak, simple, silly)
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APASmart Define. (2015). nonsensical thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/nonsensical/thesaurus/synonyms
ChicagoSmart Define. 2015. "nonsensical thesaurus" https://smartdefine.org/nonsensical/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, nonsensical thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/nonsensical/thesaurus/synonyms>.
MLASmart Define. "nonsensical thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/nonsensical/thesaurus/synonyms>