123 entries under reasonable topic. ×

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bona fide(expression, sound, honest, rational)
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commonsense(sound, rational)
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confirmed(sound, rational)
0
customary(sensible, natural, normal, valid)
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defensible(sound, rational)
0
faithful(correct, solid, proper, moral)
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hopeful(solid, realistic, persuasive, credible)
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official(sound, rational, valid, lawful)
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original(sound, significant, rational, weighty)
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possible(solid, realistic, persuasive, credible)
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presumable(solid, realistic, persuasive, credible)
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proven(sound, rational)
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received(sensible, natural, normal, valid)
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recognized(sensible, natural, normal, valid)
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regular(correct, sensible, proper, natural)
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swaying(solid, realistic, winning, persuasive)
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tested(sound, rational)
0
trusty(adjective, honest, solid, pure)
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typical(sensible, natural, normal, valid)
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unadulterated(adjective, good, sound, right)
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APASmart Define. (2016). cogent thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/cogent/thesaurus/synonyms
ChicagoSmart Define. 2016. "cogent thesaurus" https://smartdefine.org/cogent/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, cogent thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/cogent/thesaurus/synonyms>.
MLASmart Define. "cogent thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/cogent/thesaurus/synonyms>