192 entries under sound topic. ×
| unprejudiced(adjective, reasonable, moderate, sensible) | |
| utilitarian(hard, reasonable, sensible, useful) | |
| viable(adjective, reasonable, conceivable, tenable) | |
| well-organized(adjective, clear, reasonable, sensible) | |
| well-thought-out(adjective, reasonable, sensible, stable) | |
| attested | |
| authentic(reasonable, solid, realistic, satisfying) | |
| binding | |
| bona fide(expression, reasonable) | |
| condonable | |
| confirmed | |
| determinative(reasonable, convincing, believable, plausible) | |
| excusable | |
| genuine | |
| impregnable | |
| in force(expression, reasonable) | |
| intelligible(articulate, logical, silver-tongued, well-spoken) | |
| meaningful(adjective, clear, forceful, logical) | |
| official | |
| original(reasonable, smart, bright, brainy) |
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| APA | Smart Define. (2016). rational thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/rational/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "rational thesaurus" https://smartdefine.org/rational/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, rational thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/rational/thesaurus/synonyms>. |
| MLA | Smart Define. "rational thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/rational/thesaurus/synonyms> |