Synonyms|572Antonyms|79|Broader|13Narrower|18Related|178
21
insanity
13
stupidity(noun, intelligence, folly)
11
foolishness
10
ignorance(noun, stupidity)
9
madness
8
silliness
7
craziness
7
inability(noun, stupidity)
6
paranoia
5
denseness(noun, stupidity)
5
dullness
5
ineptness(noun, stupidity)
5
obtuseness(noun, sense, stupidity)
2
dopiness
2
mindlessness
2
stupidness
1
fatuity
1
density
1
slowness
1
brainlessness
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APASmart Define. (2015). acumen thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/acumen/thesaurus/antonyms
ChicagoSmart Define. 2015. "acumen thesaurus" https://smartdefine.org/acumen/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2015, acumen thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/acumen/thesaurus/antonyms>.
MLASmart Define. "acumen thesaurus" 22 December 2015. Web. 24 September 2026. <https://smartdefine.org/acumen/thesaurus/antonyms>