- Definitions|2
- Thesaurus|2.3k
- Abbreviations|0
44 entries under firm topic. ×
| enduring(verb, adjective, calm, strong, great) | |
| stable(adjective, strong, tough, strain) | |
| permanent(adjective, calm, strong, secure, tough) | |
| constant(adjective, calm, strong, secure, tough) | |
| unfluctuating(adjective, calm, strong, secure, strain) | |
| steadfast(adjective, calm, strong, secure, strain) | |
| invariable(adjective, calm, strong, secure, strain) | |
| steady(adjective, calm, strong, secure, strain) | |
| unalterable(adjective, calm, strong, secure, strain) | |
| abiding(verb, adjective, calm, strong, secure) | |
| stabile(adjective, calm, strong, secure, strain) | |
| fixed(adjective, strong, tough, stable) | |
| immutable(adjective, calm, strong, secure) | |
| unchanging(adjective, certain, steady, stable) | |
| unwavering(adjective, calm, strong, solid) | |
| loyal(certain, true, fixed, constant) | |
| unvarying(adjective, calm, strong, secure) | |
| faithful(certain, true, fixed, constant) | |
| indelible(adjective, great, extraordinary, true) | |
| tenacious(adjective, tough, true, fixed) |
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| APA | Smart Define. (2016). lasting thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/lasting/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "lasting thesaurus" https://smartdefine.org/lasting/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, lasting thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/lasting/thesaurus/synonyms>. |
| MLA | Smart Define. "lasting thesaurus" 26 February 2016. Web. 23 September 2026. <https://smartdefine.org/lasting/thesaurus/synonyms> |