29 entries under dull topic. ×

19
idiotic(adjective, simple, silly, foolish)
14
moronic(adjective, simple, slow, silly)
14
stupid(noun, adjective, simple, slow)
12
silly(noun, adjective, simple, fool)
12
foolish(adjective, simple, silly, stupid)
9
inane(adjective, simple, silly, foolish)
9
simple(noun, adjective, ability, slow)
8
asinine(adjective, simple, silly, foolish)
7
backward(adjective, simple, slow, silly)
7
dummy(noun, person, simple, fool)
7
senseless(adjective, silly, foolish, stupid)
7
slow(adjective, simple, silly, foolish)
6
brainless(adjective, simple, silly, foolish)
6
witless(adjective, simple, silly, foolish)
5
dim-witted(adjective, simple, foolish, stupid)
5
dumb(adjective, simple, silly, foolish)
5
simple-minded(adjective, simple, slow, silly)
4
half-witted(adjective, simple, slow, silly)
4
numbskull(noun, simple, limited, dolt)
4
pinhead(noun, person, simple, fool)
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APASmart Define. (2015). imbecile thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/imbecile/thesaurus/synonyms
ChicagoSmart Define. 2015. "imbecile thesaurus" https://smartdefine.org/imbecile/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, imbecile thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/imbecile/thesaurus/synonyms>.
MLASmart Define. "imbecile thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/imbecile/thesaurus/synonyms>