250 entries under adjective topic. ×

6
half-baked(dull, weak, simple, slow)
6
risible
6
slow-witted(dull, slow, stupid)
6
wacky(weak, simple, knowledge, slang)
5
dense(dull, simple, slow, silly)
5
goofy(foolish, impractical, half-baked, doomed)
5
halfwitted
5
obtuse(dull, simple, slow, silly)
5
simple-minded(simple, slow, silly, foolish)
4
batty(slow, silly, foolish, stupid)
4
boneheaded(impulsive, impractical, half-baked, doomed)
4
childish
4
empty-headed(silly, foolish, stupid)
4
feebleminded(weak, simple, silly, foolish)
4
half-witted(dull, weak, simple, silly)
4
hare-brained
4
ignorant(dull, simple, slow, foolish)
4
illogical(silly, stupid, insignificant, unreasonable)
4
jerky(weak, simple, knowledge, slang)
4
nuts
11 years ago|6.2k views|share |citing 
APASmart Define. (2015). imbecilic thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/imbecilic/thesaurus/synonyms
ChicagoSmart Define. 2015. "imbecilic thesaurus" https://smartdefine.org/imbecilic/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, imbecilic thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/imbecilic/thesaurus/synonyms>.
MLASmart Define. "imbecilic thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/imbecilic/thesaurus/synonyms>