12
unconnected(adjective, separate, strange, sense, unreasonable)
12
untenable(adjective, sense, reasoning, defended, indefensible)
11
disjointed(adjective, foolish, unreasonable, detached, confused)
11
fatuous(adjective, simple, silly, sense, stupid)
11
groundless(adjective, reason, poor, foolish, sense)
11
preposterous(adjective, strange, sense, stupid, unreasonable)
11
ridiculous(adjective, wrong, silly, foolish, stupid)
10
foolish(adjective, wrong, silly, stupid, crazy)
9
specious(adjective, correct, false, foolish, sense)
8
contradictory(adjective, wrong, strange, uncertain, irregular)
8
crazy(adjective, wrong, silly, foolish, stupid)
8
flawed(adjective, wrong, false, unstable, ill)
8
ludicrous(adjective, silly, foolish, stupid, crazy)
8
expired(adjective, feature, state, condition, situation)
8
meaningless(adjective, simple, silly, sense, stupid)
8
nonsensical(adjective, wrong, silly, foolish, stupid)
7
garbled
7
erroneous(adjective, wrong, false, mad, unreasonable)
7
idiotic(adjective, silly, foolish, stupid, insignificant)
7
impossible(adjective, wild, unreasonable, useless, absurd)
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APASmart Define. (2015). illogical thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/illogical/thesaurus/synonyms
ChicagoSmart Define. 2015. "illogical thesaurus" https://smartdefine.org/illogical/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, illogical thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/illogical/thesaurus/synonyms>.
MLASmart Define. "illogical thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/illogical/thesaurus/synonyms>