77 entries under unintelligent topic. ×

11
stolid(adjective, dull, simple, slow, foolish)
9
silly(adjective, foolish, stupid, crazy, vague)
9
crazy(adjective, foolish, impulsive, insane)
8
dimwitted(adjective, dull, simple, slang, ability)
8
loony(adjective, foolish, impractical, half-baked)
8
witless(adjective, dull, simple, slow, silly)
7
ignorant(adjective, dull, simple, slow, silly)
7
vacuous(adjective, simple, slow, stupid, empty)
6
absurd(adjective, foolish, impractical, half-baked)
6
backward(adjective, dull, simple, slow, silly)
6
daft(adjective, simple, slow, silly, foolish)
6
half-baked(adjective, dull, simple, slow, silly)
6
imbecile(adjective, dull, simple, silly, foolish)
6
senseless(adjective, dull, simple, slow, silly)
5
mindless(adjective, dull, simple, slow, silly)
4
simple-minded(adjective, dull, simple, slow, silly)
4
daffy(adjective, simple, slow, silly, foolish)
4
feebleminded(adjective, foolish, stupid, mindless)
4
naive(dull, witless)
4
ridiculous(adjective, foolish, impractical, half-baked)
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APASmart Define. (2016). dumb thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/dumb/thesaurus/synonyms
ChicagoSmart Define. 2016. "dumb thesaurus" https://smartdefine.org/dumb/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, dumb thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/dumb/thesaurus/synonyms>.
MLASmart Define. "dumb thesaurus" 29 March 2016. Web. 29 September 2026. <https://smartdefine.org/dumb/thesaurus/synonyms>