38 entries under adjective topic. ×

15
illogical(obscure, sense)
15
irrational(sound, obscure, rational, senseless)
12
unreasonable(correct, right, obscure, illogical)
9
absurd(senseless, ridiculous)
9
unsound(obscure, illogical)
5
incoherent
4
intuitive
4
foolish(sound, obscure, wise, illogical)
2
illogic
2
imaginative
2
improbable(obscure, illogical)
2
invalid(sound, reasonable, obscure, illogical)
2
unlikely(obscure, illogical)
2
visceral
1
creative
1
implausible(obscure, illogical)
1
incomprehensible
1
inconsistent
1
ludicrous(ridiculous, absurd)
1
obscure
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APASmart Define. (2015). logical thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/logical/thesaurus/antonyms
ChicagoSmart Define. 2015. "logical thesaurus" https://smartdefine.org/logical/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, logical thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/logical/thesaurus/antonyms>.
MLASmart Define. "logical thesaurus" 19 October 2015. Web. 23 September 2026. <https://smartdefine.org/logical/thesaurus/antonyms>