- Definitions|2
- Thesaurus|1.7k
- Abbreviations|0
80 entries under fast topic. ×
| lasting(verb, adjective, calm, strong, great) | |
| permanent(adjective, calm, strong, secure, tough) | |
| firm(adjective, calm, close, strong, sound) | |
| sound(adjective, calm, strong, secure, tough) | |
| constant(adjective, calm, close, strong, secure) | |
| unfluctuating(adjective, calm, strong, secure, strain) | |
| durable(adjective, calm, strong, sound, secure) | |
| steadfast(adjective, calm, close, strong, complete) | |
| abiding(verb, adjective, calm, strong, complete) | |
| steady(adjective, calm, close, strong, sound) | |
| invariable(adjective, calm, strong, secure, strain) | |
| stout(adjective, calm, strong, sound, secure) | |
| unalterable(adjective, calm, strong, secure, strain) | |
| substantial(adjective, calm, strong, sound, secure) | |
| stabile(adjective, calm, strong, secure, strain) | |
| immutable(adjective, calm, strong, secure, firm) | |
| unchanging(adjective, close, correct, firm, honest) | |
| unwavering(adjective, calm, close, strong, secure) | |
| resolute(adjective, calm, close, strong, secure) | |
| unchangeable(adjective, calm, strong, secure, flat) |
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| APA | Smart Define. (2016). enduring thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/enduring/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "enduring thesaurus" https://smartdefine.org/enduring/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, enduring thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/enduring/thesaurus/synonyms>. |
| MLA | Smart Define. "enduring thesaurus" 29 March 2016. Web. 20 September 2026. <https://smartdefine.org/enduring/thesaurus/synonyms> |