136 entries under insane topic. ×

1
aper(silly, mad, frantic, unglued)
1
around the bend(expression, adjective, idiom, wrong, confused)
1
babbling
1
blithering
1
brain-sick
1
crazy as a loon(expression, adjective, idiom, crazy, confused)
1
derailed(adjective, wrong, wild, silly, foolish)
1
dingy(silly, foolish, mad, unwise)
1
diseased(adjective, false, unstable, ill, sick)
1
fatuous(adjective, wrong, wild, silly, foolish)
1
feverish
1
harebrained(adjective, wild, silly, foolish, stupid)
1
ill(adjective, false, unstable, sick, shaky)
1
illogical(false, unstable, ill, shaky)
1
impractical(adjective, wrong, wild, silly, foolish)
1
irresponsible(adjective, wrong, wild, silly, foolish)
1
preposterous(adjective, wrong, wild, silly, foolish)
1
schizzo(adjective, crazy, irrational, frantic)
1
screwball(adjective, silly, foolish, crazy, mad)
1
stupid(adjective, wild, silly, foolish, crazy)
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APASmart Define. (2015). deranged thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/deranged/thesaurus/synonyms
ChicagoSmart Define. 2015. "deranged thesaurus" https://smartdefine.org/deranged/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, deranged thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/deranged/thesaurus/synonyms>.
MLASmart Define. "deranged thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/deranged/thesaurus/synonyms>