Synonyms|1.9kAntonyms|510|Broader|92Narrower|107Related|2.5k
1
apathetic
1
asinine
1
beaglebrained(adjective, stupid)
1
birdbrained
1
blockheaded
1
boneheaded
1
bubbleheaded
1
cheesy
1
chuckleheaded
1
cloddish
1
clueless(adjective, stupid)
1
clumsy
1
cockeyed
1
crackpot
1
cuckoo
1
daffy
1
dippy
1
dirty
1
disheveled
1
dizzy(adjective, scatterbrained, flighty)
For more, visit Smart on Power Thesaurus
10 years ago|6.6k views|share |citing 
APASmart Define. (2016). smart thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/smart/thesaurus/antonyms
ChicagoSmart Define. 2016. "smart thesaurus" https://smartdefine.org/smart/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2016, smart thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/smart/thesaurus/antonyms>.
MLASmart Define. "smart thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/smart/thesaurus/antonyms>