289 entries under adjective topic. ×
| stout | |
| stringent(sound, right, reasonable, severe) | |
| sturdy | |
| tested(sound, right, reasonable, rational) | |
| usable(practical, working, serviceable, available) | |
| accepted(honest, proper, reliable, established) | |
| accredited(honest, reliable, trustworthy, lawful) | |
| analytical(clear, sound, reasonable, honest) | |
| certified | |
| consequential(clear, effective, forceful, expressive) | |
| constitutional | |
| deep(good, reasonable, sensible, solid) | |
| definite(clear, certain, established, unquestionable) | |
| definitive | |
| endorsed(legal, legitimate, approved, official) | |
| estimable(honest, pure, straight, real) | |
| existent(solid, material, true, real) | |
| heartfelt(physical, material, true, real) | |
| honest-to-God(solid, material, real, genuine) | |
| important(powerful, effective, expressive, working) |
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| APA | Smart Define. (2016). valid thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/valid/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "valid thesaurus" https://smartdefine.org/valid/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, valid thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/valid/thesaurus/synonyms>. |
| MLA | Smart Define. "valid thesaurus" 31 March 2016. Web. 21 September 2026. <https://smartdefine.org/valid/thesaurus/synonyms> |