300 entries under adjective topic. ×

3
empty-headed
3
farcical
3
flimsy(poor, false, unwarranted, justification)
3
illegitimate
3
improbable(poor, wild, unreasonable, fantastic)
3
indefensible(defended, verbal attack)
3
jumbled(strange, fantastic, detached, irregular)
3
nonrational(impulse, intuition, thoughts)
3
not following(expression, idiom, sense, reasoning)
3
nutty(wrong, silly, foolish, sense)
3
outrageous(defended, verbal attack)
3
sappy(foolish, sentimental)
3
sophistical(sense, mad, unreasonable, irrational)
3
spurious(correct, sense, true)
3
unacceptable(defended, verbal attack)
3
unjustifiable(defended, verbal attack)
3
unproved(sense, reasoning)
3
unsubstantial(false, sense, unstable, ill)
3
unthinkable(unusual, incredible)
3
unwise(wrong, wild, silly, foolish)
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APASmart Define. (2015). illogical thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/illogical/thesaurus/synonyms
ChicagoSmart Define. 2015. "illogical thesaurus" https://smartdefine.org/illogical/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, illogical thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/illogical/thesaurus/synonyms>.
MLASmart Define. "illogical thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/illogical/thesaurus/synonyms>