28 entries under stupid topic. ×

15
intelligent(adjective, mind, behavior, disability, foolishness)
5
astute(adjective, foolish, perceptive)
2
discerning
2
knowing
2
quick-witted
2
rational(careless, illogical)
2
thinking
1
cognitive(careless, unreasonable)
1
sane
0
Einstein(dull, slow)
0
both oars in water(expression, idiom, unreasonable)
0
buddy-buddy
0
buddy buddy
0
coming on strong(expression, idiom)
0
forward
0
gnostic
0
having all marbles(expression, idiom, unreasonable)
0
in right mind(expression, idiom)
0
insighted
0
matter of fact(expression, idiom)
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APASmart Define. (2016). unintelligent thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unintelligent/thesaurus/antonyms
ChicagoSmart Define. 2016. "unintelligent thesaurus" https://smartdefine.org/unintelligent/thesaurus/antonyms (accessed September 30, 2026).
HarvardSmart Define 2016, unintelligent thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unintelligent/thesaurus/antonyms>.
MLASmart Define. "unintelligent thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/unintelligent/thesaurus/antonyms>