17
sane(adjective, characteristic, sound, reasonable, sensible)
15
rational(adjective, characteristic, sound, sensible, careless)
13
sound(adjective, characteristic, sensible, sense, sanity)
11
normal(adjective, characteristic, unusual, sense, rational)
11
realistic(adjective, characteristic, sense, sanity)
10
balanced(adjective, characteristic, sound, sensible, sense)
10
reasonable(adjective, characteristic, sound, sensible, sense)
10
healthy(adjective, characteristic, sound, sensible, sense)
9
sensible(adjective, characteristic, sound, sense, sanity)
8
wise(adjective, characteristic, sense, sanity)
8
judicious(adjective, characteristic, sense, sanity)
8
logical(adjective, characteristic, sense, sanity)
8
prudent(adjective, characteristic, sense, sanity)
8
sagacious(adjective, characteristic, sense, sanity)
7
sage(adjective, characteristic, sense, sanity)
6
smart(adjective, characteristic, sound, sensible, sense)
6
sober(adjective, characteristic, sense, sanity)
5
lucid(adjective, characteristic, sense, sanity)
5
commonsensical(adjective, characteristic, sense, sanity)
5
discerning(adjective, characteristic, sense, sanity)
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APASmart Define. (2015). insane thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/insane/thesaurus/antonyms
ChicagoSmart Define. 2015. "insane thesaurus" https://smartdefine.org/insane/thesaurus/antonyms (accessed September 22, 2026).
HarvardSmart Define 2015, insane thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/insane/thesaurus/antonyms>.
MLASmart Define. "insane thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/insane/thesaurus/antonyms>