- Definitions|2
- Thesaurus|876
- Abbreviations|0
50 entries under sound topic. ×
| reasonable(sensible, rational, wise, shrewd) | |
| solid(good, right, reasonable, rational) | |
| 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) | |
| well-founded(good, right, reasonable, rational) | |
| well-grounded(good, right, reasonable, rational) |
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| APA | Smart Define. (2015). efficacious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/efficacious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "efficacious thesaurus" https://smartdefine.org/efficacious/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, efficacious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/efficacious/thesaurus/synonyms>. |
| MLA | Smart Define. "efficacious thesaurus" 13 October 2015. Web. 25 September 2026. <https://smartdefine.org/efficacious/thesaurus/synonyms> |