- Definitions|2
- Thesaurus|5k
- Abbreviations|0
93 entries under sound topic. ×
| defensible(reasonable, rational) | |
| determinative(reasonable, rational) | |
| efficient(good, right, reasonable, rational) | |
| in force(expression, good, right, reasonable) | |
| justifiable(reasonable, rational) | |
| pure(good, right, reasonable, rational) | |
| rational(adjective, reasonable, legitimate, well-founded) | |
| stringent(good, right, reasonable, rational) | |
| tested(good, right, reasonable, rational) | |
| ultimate(reasonable, rational) | |
| unadulterated(good, right, reasonable, rational) | |
| unanswerable(good, right, reasonable, rational) | |
| uncorrupted(good, right, reasonable, rational) |
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| APA | Smart Define. (2016). substantial thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/substantial/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "substantial thesaurus" https://smartdefine.org/substantial/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, substantial thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/substantial/thesaurus/synonyms>. |
| MLA | Smart Define. "substantial thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/substantial/thesaurus/synonyms> |