74 entries under insane topic. ×

3
neurotic
3
out to lunch(expression, adjective, idiom, silly, crazy)
3
potty(adjective, silly, foolish, mad)
3
schizoid
3
wacky(adjective, slang, silly, foolish, crazy)
2
babbling
2
bats in the belfry(expression, idiom, silly, foolish, mad)
2
brain-sick
2
crack-brained
2
disturbed(verb, adjective, cruel, hot, crazy)
2
flipped out(verb, expression, phrasal verb, silly, crazy)
2
freaked out(expression, silly, foolish, crazy, mad)
2
idiotic(adjective, mind, think, silly, crazy)
2
mad as a March hare(expression, idiom, silly, foolish, mad)
2
mad as a hatter(expression, adjective, idiom, silly, mad)
2
mentally strange(expression, silly, foolish, mad)
2
nutty as fruitcake(expression, idiom, silly, foolish, mad)
2
round the bend(expression, idiom, silly, foolish, mad)
2
schizo(adjective, silly, foolish, mad)
2
screw loose(expression, silly, foolish, mad)
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APASmart Define. (2016). maniacal thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/maniacal/thesaurus/synonyms
ChicagoSmart Define. 2016. "maniacal thesaurus" https://smartdefine.org/maniacal/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, maniacal thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/maniacal/thesaurus/synonyms>.
MLASmart Define. "maniacal thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/maniacal/thesaurus/synonyms>