128 entries under foolish topic. ×

4
pointless(adjective, dull, simple, slow, silly)
4
simpleminded(adjective, dull, simple, silly)
4
stolid(adjective, dull, simple, slow)
4
thick-witted(adjective, stupid, crazy, insane)
3
blithering
3
lunatic(adjective, weak, simple, knowledge, ability)
3
scatterbrained(adjective, simple, slow, stupid)
3
short-sighted(adjective, weak, simple, silly)
3
tomfool(adjective, knowledge, ability)
3
zany(adjective, weak, simple, knowledge, ability)
2
birdbrained(adjective, dull, simple, slow, silly)
2
futile(adjective, dull, simple, slow)
2
harebrained(adjective, weak, simple, knowledge, ability)
2
injudicious(adjective, weak, simple, mind, think)
2
kooky(weak, simple, silly, thoughtless)
2
loopy(adjective, knowledge, ability, informal)
2
meaningless(adjective, dull, simple, slow, silly)
2
mentally deficient(expression, silly, stupid)
2
mentally handicapped(expression, silly, stupid)
2
rash(adjective, dull, simple, slow, silly)
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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>