86 entries under insane topic. ×

5
off(adjective, sane)
5
psycho(silly, foolish, mad, unwise)
5
senseless(adjective, silly, foolish, stupid)
5
unhinged(adjective, silly, foolish, stupid, mad)
5
unsettled(adjective, silly, foolish, stupid)
5
unsound(adjective, sane)
4
batty(adjective, slang, silly, foolish, stupid)
4
bonkers(adjective, informal, silly, foolish, mad)
4
frenzied(adjective, silly, foolish, stupid)
4
maniac(noun, adjective, sane)
4
maniacal(adjective, silly, foolish, stupid, mad)
4
psychotic(adjective, silly, foolish, stupid)
3
bizarre(adjective, silly, foolish, stupid)
3
cuckoo(adjective, slang, silly, foolish, stupid)
3
disordered(adjective, sane)
3
dotty(adjective, sane)
3
idiotic(adjective, silly, foolish, stupid, mad)
3
mad as a hatter(expression, adjective, idiom, silly, mad)
3
mentally ill(expression, adjective, idiom, sane)
3
not all there(expression, adjective, idiom, sane)
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APASmart Define. (2015). moonstruck thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/moonstruck/thesaurus/synonyms
ChicagoSmart Define. 2015. "moonstruck thesaurus" https://smartdefine.org/moonstruck/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, moonstruck thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/moonstruck/thesaurus/synonyms>.
MLASmart Define. "moonstruck thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/moonstruck/thesaurus/synonyms>