82 entries under reasonable topic. ×
| acceptable(solid, realistic, satisfying, trustworthy) | |
| believeable(solid, realistic, persuasive, credible) | |
| colorable(realistic, satisfying, trustworthy, credible) | |
| conceivable(realistic, satisfying, trustworthy, credible) | |
| credential(realistic, satisfying, trustworthy, credible) | |
| defensible(sound, rational) | |
| efficacious(good, sound, right, rational) | |
| efficient(good, sound, right, rational) | |
| likely(solid, realistic, satisfying, trustworthy) | |
| logical(good, sound, right, rational) | |
| possible(solid, realistic, satisfying, trustworthy) | |
| presumable(solid, realistic, satisfying, trustworthy) | |
| probable(solid, realistic, satisfying, trustworthy) | |
| rational(sound, solid, realistic, satisfying) | |
| satisfying(honest, solid, straight, upright) | |
| stringent(good, sound, right, rational) | |
| strong(good, sound, right, rational) | |
| supposable(realistic, satisfying, trustworthy, credible) | |
| swaying(solid, realistic, persuasive, credible) | |
| tested(good, sound, right, rational) |
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| APA | Smart Define. (2016). authentic thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/authentic/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "authentic thesaurus" https://smartdefine.org/authentic/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, authentic thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/authentic/thesaurus/synonyms>. |
| MLA | Smart Define. "authentic thesaurus" 31 March 2016. Web. 23 September 2026. <https://smartdefine.org/authentic/thesaurus/synonyms> |