66 entries under irrational topic. ×

10
daffy(adjective, simple, informal, silly, foolish)
10
screwy(adjective, slang, wild, silly, foolish)
10
wild(adjective, wrong, silly, foolish, stupid)
9
foolish(adjective, wrong, wild, strange, silly)
9
hysterical(adjective, upset, mad, insane)
9
maniac(adjective, violent, crazy, fierce, insane)
9
unsound(adjective, simple, foolish, crazy, unstable)
8
cuckoo(adjective, slang, wild, silly, foolish)
7
distraught(adjective, upset, wrong, foolish, stupid)
7
potty(adjective, wild, silly, foolish, crazy)
6
disordered(adjective, wrong, hot, crazy, confused)
6
frantic(adjective, upset, violent, mad, fierce)
6
idiotic(adjective, wild, silly, foolish, stupid)
6
kooky(adjective, wrong, unusual, wild, strange)
5
buggy(adjective, slang, silly, foolish, crazy)
5
raving(adjective, upset, wrong, silly, foolish)
5
silly(adjective, wrong, wild, foolish, stupid)
4
unsettled(adjective, silly, foolish, stupid, hot)
3
bizarre(adjective, wrong, unusual, wild, strange)
3
eccentric(adjective, unusual, wild, strange, silly)
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APASmart Define. (2015). demented thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/demented/thesaurus/synonyms
ChicagoSmart Define. 2015. "demented thesaurus" https://smartdefine.org/demented/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, demented thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/demented/thesaurus/synonyms>.
MLASmart Define. "demented thesaurus" 17 July 2015. Web. 27 September 2026. <https://smartdefine.org/demented/thesaurus/synonyms>