151 entries under foolish topic. ×

2
raving(adjective, silly, stupid, unreasonable)
2
schizo(adjective, silly, mad, insane)
2
schizophrenic(adjective, silly, stupid)
2
screw loose(expression, silly, mad, insane)
2
tomfool
2
unintelligent(adjective, weak, simple, silly)
1
dingy(silly, mad, insane, unwise)
1
doltish(weak, simple, silly, thoughtless)
1
fallacious(unreasonable, irrational, illogical, unreasoned)
1
fantastic(weak, simple, silly, thoughtless)
1
feebleminded(weak, simple, silly, thoughtless)
1
groundless(unreasonable, irrational, illogical, unreasoned)
1
ill-advised(weak, simple, silly, thoughtless)
1
ill-considered(weak, simple, silly, thoughtless)
1
imprudent(weak, simple, silly, thoughtless)
1
incautious(weak, simple, silly, thoughtless)
1
indiscreet(weak, simple, silly, thoughtless)
1
injudicious(weak, simple, silly, unreasonable)
1
invalid(unreasonable, irrational, illogical, unreasoned)
1
nerdy(weak, simple, silly, thoughtless)
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APASmart Define. (2015). nutty thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/nutty/thesaurus/synonyms
ChicagoSmart Define. 2015. "nutty thesaurus" https://smartdefine.org/nutty/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, nutty thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/nutty/thesaurus/synonyms>.
MLASmart Define. "nutty thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/nutty/thesaurus/synonyms>