- Definitions|2
- Thesaurus|559
- Abbreviations|0
84 entries under reasonable topic. ×
| original(sound, rational) | |
| persuasive(sound, rational) | |
| potent(sound, rational) | |
| powerful(sound, rational) | |
| probable | |
| proven(sound, rational) | |
| pure(sound, rational) | |
| reliable(sound, rational) | |
| secure(adjective, sound, rational) | |
| sound(rational, justified) | |
| stringent(sound, rational) | |
| substantial(sound, rational) | |
| suitable | |
| telling(sound, rational) | |
| tested(sound, rational) | |
| true(sound, rational) | |
| trustworthy(sound, rational) | |
| ultimate(sound, rational) | |
| unadulterated(sound, rational) | |
| unanswerable(sound, rational) |
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| APA | Smart Define. (2016). defensible thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/defensible/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "defensible thesaurus" https://smartdefine.org/defensible/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, defensible thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/defensible/thesaurus/synonyms>. |
| MLA | Smart Define. "defensible thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/defensible/thesaurus/synonyms> |