- Definitions|2
- Thesaurus|559
- Abbreviations|0
| original(sound, reasonable, rational) | |
| orthodox | |
| persuasive(sound, reasonable, rational) | |
| popular | |
| possible | |
| potent(sound, reasonable, rational) | |
| powerful(sound, reasonable, rational) | |
| probable(reasonable, justified) | |
| propositional | |
| proven(sound, reasonable, rational) | |
| pure(sound, reasonable, rational) | |
| reliable(sound, reasonable, rational) | |
| remittable | |
| secure(adjective, sound, reasonable, rational) | |
| sound(reasonable, rational, justified) | |
| specious | |
| stringent(sound, reasonable, rational) | |
| substantial(sound, reasonable, rational) | |
| suitable(reasonable, justified) | |
| telling(sound, reasonable, rational) |
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| APA | Smart Define. (2016). defensible thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/defensible/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "defensible thesaurus" https://smartdefine.org/defensible/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, defensible thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/defensible/thesaurus/synonyms>. |
| MLA | Smart Define. "defensible thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/defensible/thesaurus/synonyms> |