Synonyms|1kAntonyms|166|Broader|16Narrower|14Related|2k
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having all marbles(expression, idiom, stupid, unreasonable)
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in good health(expression, idiom, poor, unhealthy)
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in right mind(expression, idiom, unreasonable, unsound)
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inferential
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intellectual
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judicial
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justifiable
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keen-sighted
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legitimate(false, improper, unlawful)
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lifelike
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matter of fact(expression, idiom)
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mental
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moderate
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noetic
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of sound mind(expression, idiom, stupid, unreasonable)
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philosophical
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playing with full deck(expression, idiom, stupid, unreasonable)
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rationalistic
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representational
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responsible(adjective, sound, rational)
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APASmart Define. (2015). irrational thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/irrational/thesaurus/antonyms
ChicagoSmart Define. 2015. "irrational thesaurus" https://smartdefine.org/irrational/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2015, irrational thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/irrational/thesaurus/antonyms>.
MLASmart Define. "irrational thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/irrational/thesaurus/antonyms>