79 entries under insane topic. ×

9
cuckoo(adjective, slang, wild, silly, foolish)
9
kooky(adjective, wild, silly, foolish, crazy)
8
of unsound mind(expression, adjective, idiom, silly, mad)
8
screwy(adjective, slang, silly, foolish, crazy)
7
fruity(adjective, slang, silly, foolish, mad)
7
gaga(adjective, informal, sane, distraught)
7
mental(adjective, simple, silly, foolish, mad)
7
moonstruck(adjective, silly, foolish, stupid, mad)
6
brainsick(adjective, wrong, wild, crazy, confused)
6
disordered(adjective, wrong, crazy, confused)
6
round the bend(expression, adjective, idiom, silly, foolish)
5
around the bend(expression, adjective, idiom, wrong, confused)
5
distraught(adjective, wrong, wild, crazy, confused)
5
out to lunch(expression, adjective, idiom, silly, mad)
5
potty(adjective, wild, silly, foolish, stupid)
5
psycho(silly, foolish, crazy, mad)
4
irrational(adjective, wrong, wild, silly, foolish)
4
maniacal(adjective, silly, crazy, mad)
4
silly(adjective, wild, foolish, stupid, crazy)
4
unsettled(silly, foolish, stupid, crazy)
11 years ago|23k views|share |citing 
APASmart Define. (2015). cracked thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/cracked/thesaurus/synonyms
ChicagoSmart Define. 2015. "cracked thesaurus" https://smartdefine.org/cracked/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, cracked thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/cracked/thesaurus/synonyms>.
MLASmart Define. "cracked thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/cracked/thesaurus/synonyms>