Synonyms|1.2kAntonyms|178|Broader|25Narrower|105Related|910
20
insanity
18
stupidity(noun, dullness)
15
silliness
14
craziness
9
dark(noun, brightness, ignorance, mystery, daybreak)
8
madness
7
foolishness
7
instinctive behaviour
7
paranoia
6
ignorance(noun, understanding, knowledge, stupidity, inexperience)
6
dullness
5
mindlessness
4
idiocy(noun, stupidity)
4
senselessness
4
slowness
4
incapacity
3
denseness(noun, light, revelation)
3
folly
3
obtuseness(noun, understanding, cognizance)
3
density
<12345…9>
For more, visit Intelligence on Power Thesaurus
11 years ago|2.8k views|share |citing 
APASmart Define. (2015). intelligence thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/intelligence/thesaurus/antonyms
ChicagoSmart Define. 2015. "intelligence thesaurus" https://smartdefine.org/intelligence/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, intelligence thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/intelligence/thesaurus/antonyms>.
MLASmart Define. "intelligence thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/intelligence/thesaurus/antonyms>