128 entries under foolish topic. ×

2
weak(dull, simple, silly, limited)
1
bone-headed
1
chuckle-headed
1
cockamamy(silly, thoughtless, unwise, unintelligent)
1
deficient(adjective, dull, silly, stupid)
1
dimwitted(adjective, dull, simple, silly)
1
fantastic(weak, simple, silly, thoughtless)
1
gullible(adjective, dull, simple, slow, silly)
1
ill-advised(adjective, dull, weak, simple, silly)
1
ill-considered(weak, simple, silly, thoughtless)
1
imprudent(weak, simple, silly, thoughtless)
1
incautious(weak, simple, silly, thoughtless)
1
indiscreet(dull, weak, simple, silly)
1
insensate(adjective, dull, simple, slow, silly)
1
jackass
1
knuckle-headed
1
lame-brained
1
meat-headed
1
naive(adjective, dull, simple, innocent)
1
nerdy(weak, simple, silly, thoughtless)
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APASmart Define. (2016). moronic thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/moronic/thesaurus/synonyms
ChicagoSmart Define. 2016. "moronic thesaurus" https://smartdefine.org/moronic/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, moronic thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/moronic/thesaurus/synonyms>.
MLASmart Define. "moronic thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/moronic/thesaurus/synonyms>