250 entries under adjective topic. ×

11
mindless(dull, simple, slow, silly)
10
brainless(dull, weak, simple, slow)
10
dull(simple, slow, foolish, stupid)
10
feeble-minded(simple, slow, foolish, stupid)
10
irrational(weak, simple, silly, foolish)
10
nutty(weak, simple, silly, foolish)
10
simple(dull, weak, slow, silly)
9
dim-witted(simple, slow, silly, foolish)
9
laughable(dull, silly, absurd, unintelligent)
9
thick(dull, simple, slow, foolish)
9
unintelligent(dull, weak, simple, slow)
8
dippy(weak, simple, knowledge, slang)
8
doltish(dull, weak, simple, slow)
8
loony(weak, simple, knowledge, ability)
8
unreasonable(weak, simple, silly, foolish)
8
witless(dull, weak, simple, slow)
7
cretinous(foolish, innocent, thick, unfamiliar)
7
dotty(weak, simple, silly, foolish)
6
addle-pated
6
dopey(dull, knowledge, slang, ability)
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APASmart Define. (2015). imbecilic thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/imbecilic/thesaurus/synonyms
ChicagoSmart Define. 2015. "imbecilic thesaurus" https://smartdefine.org/imbecilic/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, imbecilic thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/imbecilic/thesaurus/synonyms>.
MLASmart Define. "imbecilic thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/imbecilic/thesaurus/synonyms>