74 entries under insane topic. ×

19
nuts(noun, adjective, slang, crazy, mad)
15
daft(adjective, sane)
14
crazy(adjective, informal, mad, sick)
14
lunatic(adjective, crazy, mad, irrational)
13
mad(adjective, crazy, irrational, sane)
13
nutty(noun, adjective, slang, crazy, mad)
12
batty(noun, adjective, slang, crazy)
12
demented(adjective, sane)
12
loony(adjective, informal, sane)
12
mental(adjective, hacked, lunatic, psychiatric)
12
unbalanced(adjective, crazy, mad, irrational)
11
deranged(adjective, crazy, mad, irrational)
11
cracked(adjective, informal, sane)
10
dotty(adjective, crazy, sick, irrational)
10
crazed
10
non compos mentis(expression, adjective, idiom, law, mad)
10
touched(adjective, informal, sane)
9
fruity(adjective, slang, mad, sane)
9
maniac(adjective, crazy, mad, sick)
9
mentally ill(expression, adjective, idiom, crazy, sick)
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APASmart Define. (2015). loco thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/loco/thesaurus/synonyms
ChicagoSmart Define. 2015. "loco thesaurus" https://smartdefine.org/loco/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, loco thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/loco/thesaurus/synonyms>.
MLASmart Define. "loco thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/loco/thesaurus/synonyms>