50 entries under insane topic. ×

63
faulty(adjective, feature, state, wrong, condition)
61
incorrect(adjective, feature, state, wrong, condition)
53
infirm(adjective, feature, state, condition, situation)
26
irrational(adjective, wrong, reason, false, silly)
25
unreasonable(adjective, wrong, reason, poor, false)
21
absurd(adjective, wrong, wild, strange, silly)
17
unsound(adjective, correct, wrong, false, silly)
15
incongruous(adjective, false, strange, silly, sense)
15
senseless(adjective, wrong, silly, foolish, sense)
13
mad(adjective, wrong, false, silly, foolish)
12
false(adjective, correct, wrong, poor, sense)
10
foolish(adjective, wrong, silly, stupid, crazy)
8
crazy(adjective, wrong, silly, foolish, stupid)
8
flawed(adjective, wrong, false, unstable, ill)
8
ludicrous(adjective, silly, foolish, stupid, crazy)
8
nonsensical(adjective, wrong, silly, foolish, stupid)
6
inaccurate(adjective, wrong, false, ill)
4
wacky(adjective, wrong, silly, foolish, sense)
3
nutty(adjective, wrong, silly, foolish, sense)
3
unsubstantial(adjective, false, sense, unstable, ill)
<123>
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APASmart Define. (2015). illogical thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/illogical/thesaurus/synonyms
ChicagoSmart Define. 2015. "illogical thesaurus" https://smartdefine.org/illogical/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, illogical thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/illogical/thesaurus/synonyms>.
MLASmart Define. "illogical thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/illogical/thesaurus/synonyms>