9
birdbrained
6
insanity
4
unintelligent(adjective, dull, rough)
3
don't know(noun, verb, understanding, information, knowledge)
3
dull(adjective, rough)
3
dumb
3
foolishness
2
brain-dead
2
dim-witted
2
dopey
2
half-witted
2
ignorant(adjective, dull, rough)
2
naive(adjective, dull, rough)
2
obtuse(adjective, dull, rough)
2
slow(adjective, dull, rough)
2
witless
1
inexperienced(adjective, dull, rough)
1
brainless
1
guileless
1
ignorance(noun, stupidity)
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APASmart Define. (2016). savvy thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/savvy/thesaurus/antonyms
ChicagoSmart Define. 2016. "savvy thesaurus" https://smartdefine.org/savvy/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, savvy thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/savvy/thesaurus/antonyms>.
MLASmart Define. "savvy thesaurus" 31 March 2016. Web. 25 September 2026. <https://smartdefine.org/savvy/thesaurus/antonyms>