48 entries under obtuse topic. ×

6
half-baked(adjective, dull, weak, simple, slow)
5
dense(adjective, dull, simple, slow, silly)
5
simple-minded(adjective, simple, slow, silly, foolish)
4
ignorant(adjective, dull, simple, slow, foolish)
4
unthinking(adjective, dull, simple, slow, silly)
3
daffy(adjective, weak, simple, slow, silly)
3
slow(adjective, dull, simple, silly, foolish)
3
stolid(adjective, dull, simple, slow, foolish)
2
backward(adjective, simple, slow, foolish, stupid)
2
meaningless(adjective, dull, simple, slow, silly)
2
pointless(adjective, dull, simple, slow, silly)
2
scatterbrained(adjective, simple, slow, silly, foolish)
2
unintellectual(adjective, simple, slow, stupid, innocent)
1
addled(adjective, simple, slow, stupid, sluggish)
1
futile(adjective, dull, simple, slow, silly)
1
insensate(adjective, dull, simple, slow, foolish)
1
naive(adjective, dull, simple, foolish, innocent)
1
numskulled(adjective, dull, simple, slow, stupid)
1
rash(adjective, dull, simple, slow, silly)
1
shallow(adjective, simple, slow, stupid, innocent)
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APASmart Define. (2015). imbecilic thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/imbecilic/thesaurus/synonyms
ChicagoSmart Define. 2015. "imbecilic thesaurus" https://smartdefine.org/imbecilic/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, imbecilic thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/imbecilic/thesaurus/synonyms>.
MLASmart Define. "imbecilic thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/imbecilic/thesaurus/synonyms>