94 entries under unreasonable topic. ×

2
incoherent(adjective, foolish, hot, illogical)
2
nonsensical(silly, foolish, crazy, mad)
1
aberrant(foolish, hot, illogical, preoccupied)
1
absurd(adjective, wrong, wild, strange, silly)
1
bent(violent, mad, vicious, fierce)
1
bent out of shape(expression, idiom, violent, fierce)
1
boiling(violent, mad, vicious, fierce)
1
browned off(expression, violent, mad, fierce)
1
bummed out(expression, violent, mad, fierce)
1
cockamamie(adjective, wrong, silly, foolish, stupid)
1
corybantic(violent, mad, fierce, frantic)
1
derailed(adjective, wrong, wild, silly, foolish)
1
desperate(violent, mad, vicious, fierce)
1
fallacious(false, foolish, ill, insane)
1
fierce(violent, mad, vicious, angry)
1
freaky(unusual, strange, foolish, unstable)
1
fuming(violent, mad, vicious, fierce)
1
hacked(violent, mad, vicious, fierce)
1
hopping mad(expression, violent, mad, fierce)
1
illogical(false, foolish, unstable, ill)
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APASmart Define. (2015). demented thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/demented/thesaurus/synonyms
ChicagoSmart Define. 2015. "demented thesaurus" https://smartdefine.org/demented/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, demented thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/demented/thesaurus/synonyms>.
MLASmart Define. "demented thesaurus" 17 July 2015. Web. 29 September 2026. <https://smartdefine.org/demented/thesaurus/synonyms>