- Definitions|2
- Thesaurus|1.7k
- Abbreviations|0
137 entries under firm topic. ×
| fixed(adjective, strong, sound, tough, flat) | |
| immutable(adjective, calm, strong, secure) | |
| unchanging(adjective, close, correct, honest) | |
| unwavering(adjective, calm, close, strong, secure) | |
| changeless(adjective, solid, certain, stable) | |
| unfaltering(adjective, complete, total, solid) | |
| resolute(adjective, calm, close, strong, secure) | |
| tenacious(adjective, strong, sound, tough, fit) | |
| unchangeable(adjective, calm, strong, secure, flat) | |
| unqualified(adjective, strong, complete, flat) | |
| faithful(adjective, close, correct, certain) | |
| unvarying(adjective, calm, strong, secure) | |
| secure(adjective, calm, strong, sound, tough) | |
| staunch(adjective, calm, close, strong, sound) | |
| sturdy(adjective, calm, strong, sound, secure) | |
| determined(adjective, strong, flat, warm) | |
| stubborn(adjective, set, determined, resolute) | |
| sure(adjective, calm, close, strong, complete) | |
| unswerving(adjective, close, set, correct) | |
| loyal(adjective, close, correct, honest) |
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| APA | Smart Define. (2016). enduring thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/enduring/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "enduring thesaurus" https://smartdefine.org/enduring/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, enduring thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/enduring/thesaurus/synonyms>. |
| MLA | Smart Define. "enduring thesaurus" 29 March 2016. Web. 22 September 2026. <https://smartdefine.org/enduring/thesaurus/synonyms> |