2
fatuous
1
airheaded
1
birdbrained
1
boneheaded
1
brain-dead
1
brainless
1
bubbleheaded
1
chuckleheaded
1
dense
1
dim
1
dim-witted
1
doltish
1
dopey
1
dorky
1
dull
1
dumb
1
dunderheaded
1
empty-headed
1
gormless
1
half-witted
12 years ago|918 views|share |citing 
APASmart Define. (2013). hyperintelligent thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/hyperintelligent/thesaurus/antonyms
ChicagoSmart Define. 2013. "hyperintelligent thesaurus" https://smartdefine.org/hyperintelligent/thesaurus/antonyms (accessed September 21, 2026).
HarvardSmart Define 2013, hyperintelligent thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/hyperintelligent/thesaurus/antonyms>.
MLASmart Define. "hyperintelligent thesaurus" 17 October 2013. Web. 21 September 2026. <https://smartdefine.org/hyperintelligent/thesaurus/antonyms>