Synonyms|533Antonyms|380|Broader|6Narrower|13Related|2k
1
asinine
1
bananas
1
bats
1
brainsick
1
bughouse
1
certifiable
1
certified
1
clairvoyant
1
crackbrained
1
crackpot
1
cuckoo
1
daffy
1
demoniacal
1
dippy
1
disordered
1
dotty
1
dumb
1
dunderheaded
1
fatuous
1
fey
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APASmart Define. (2015). sane thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sane/thesaurus/antonyms
ChicagoSmart Define. 2015. "sane thesaurus" https://smartdefine.org/sane/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2015, sane thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sane/thesaurus/antonyms>.
MLASmart Define. "sane thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/sane/thesaurus/antonyms>