44 entries under slow topic. ×

5
dim-witted(adjective, dull, simple, foolish)
4
feeble-minded(adjective, dull, simple, foolish)
4
half-witted(adjective, dull, weak, simple)
4
pointless(adjective, dull, simple, silly)
4
vacuous(adjective, simple, indifferent, silly)
3
backward(adjective, dull, simple, silly)
3
dopey(adjective, dull, simple, foolish)
3
simple-minded(adjective, dull, simple, silly)
2
daffy(adjective, weak, simple, silly)
2
inept(adjective, simple, careless, foolish)
2
naive(adjective, dull, simple, careless)
2
not bright(expression, adjective, simple, stupid)
1
addled(adjective, simple, stupid, boring)
1
futile(adjective, dull, simple, silly)
1
gullible(adjective, dull, simple, silly)
1
half-baked(adjective, dull, weak, simple, slight)
1
rash(adjective, dull, simple, careless)
1
scatterbrained(adjective, simple, foolish, stupid)
1
sluggish(adjective, dull, simple, stupid)
1
trivial(adjective, dull, simple, slight)
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APASmart Define. (2016). unintelligent thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unintelligent/thesaurus/synonyms
ChicagoSmart Define. 2016. "unintelligent thesaurus" https://smartdefine.org/unintelligent/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, unintelligent thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unintelligent/thesaurus/synonyms>.
MLASmart Define. "unintelligent thesaurus" 24 March 2016. Web. 29 September 2026. <https://smartdefine.org/unintelligent/thesaurus/synonyms>