26
clever(adjective, bright, ingenious)
19
smart(adjective, sound, stupid, wise)
16
prudent(adjective, sound, careless, wise, imprudent)
12
intelligent(adjective, behavior, dullness, feature, mind)
12
wise(adjective, sound, reasonable, careless, intelligent)
9
circumspect(adjective, sound, careless, wise, reckless)
7
sensible(adjective, sound, wise, unsound)
5
discreet(adjective, sensible, careless, stupid, cautious)
5
beautiful
5
shrewd
4
careful(adjective, sound, false, loose, wise)
4
fast learner
4
happy
3
cautious(adjective, sound, careless, wise, reckless)
3
judicious(adjective, careless, thoughtful, wise, unsound)
3
serious(adjective, sound, wise)
3
canny(adjective, open, honest, careless, clever)
3
intellectual(adjective, body, smart)
3
logical(adjective, sound, obscure, wise, illogical)
3
rational(adjective, sound, careless, stupid, wise)
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APASmart Define. (2016). foolish thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/foolish/thesaurus/antonyms
ChicagoSmart Define. 2016. "foolish thesaurus" https://smartdefine.org/foolish/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2016, foolish thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/foolish/thesaurus/antonyms>.
MLASmart Define. "foolish thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/foolish/thesaurus/antonyms>