77 entries under unintelligent topic. ×

3
insensate(adjective, dull, simple, slow, informal)
3
numskulled(adjective, dull, simple, slow, stupid)
3
scatterbrained(adjective, simple, slow, silly, foolish)
3
sluggish(adjective, dull, simple, slow, silly)
2
laughable(adjective, dull, witless)
2
dazed(dull, shaky, faint, confused)
2
futile(dull, witless)
2
lunatic(adjective, foolish, crazy, insane)
2
uncomprehending(adjective, dull, stupid, insensitive, shallow)
2
wearisome(adjective, simple, slow, stupid, sluggish)
1
besotted(adjective, simple, slow, stupid, sluggish)
1
birdbrained(foolish, stupid, crazy, insane)
1
addled(adjective, upset, light, simple, slow)
1
deficient(adjective, dull, silly, foolish, stupid)
1
dummy(adjective, dull, witless)
1
gullible(adjective, dull, simple, slow, silly)
1
harebrained(foolish, crazy, impulsive, insane)
1
ill-advised(dull, foolish, stupid, witless)
1
indiscreet(dull, impulsive, impractical, half-baked)
1
low(adjective, close, quiet, simple, soft)
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APASmart Define. (2016). dumb thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/dumb/thesaurus/synonyms
ChicagoSmart Define. 2016. "dumb thesaurus" https://smartdefine.org/dumb/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, dumb thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/dumb/thesaurus/synonyms>.
MLASmart Define. "dumb thesaurus" 29 March 2016. Web. 30 September 2026. <https://smartdefine.org/dumb/thesaurus/synonyms>