Synonyms|476Antonyms|4|Broader|1Narrower|0Related|32

60 entries under rational topic. ×

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attested(good, sound, right, reasonable)
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binding(sound, reasonable)
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commonsense(sound, reasonable)
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conclusive(sound, reasonable)
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defensible(sound, reasonable, justified)
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determinative(sound, reasonable)
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efficacious(good, sound, right, reasonable)
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in force(expression, good, sound, right, reasonable)
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irrefutable(sound, reasonable)
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persuasive(good, sound, right, reasonable)
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potent(good, sound, right, reasonable)
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powerful(good, sound, right, reasonable)
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stringent(good, sound, right, reasonable)
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strong(good, sound, right, reasonable)
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tested(good, sound, right, reasonable)
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unadulterated(good, sound, right, reasonable)
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unanswerable(good, sound, right, reasonable)
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uncorrupted(good, sound, right, reasonable)
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weighty(good, sound, right, reasonable, solid)
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well-grounded(good, sound, right, reasonable)
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ChicagoSmart Define. 2015. "legit thesaurus" https://smartdefine.org/legit/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, legit thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/legit/thesaurus/synonyms>.
MLASmart Define. "legit thesaurus" 5 May 2015. Web. 27 September 2026. <https://smartdefine.org/legit/thesaurus/synonyms>