112 entries under firm topic. ×
| stony(adjective, stiff, rigid) | |
| stuck(true, fixed, constant, steadfast) | |
| thick(adjective, stiff, rigid) | |
| true(fixed, constant, steadfast, immovable) | |
| true blue(expression, true, fixed, constant) | |
| unfaltering(adjective, solid, stable, fixed) | |
| unqualified(adjective, solid, stable, fixed) | |
| unquestioning(adjective, solid, stable, fixed) | |
| unshaken(adjective, solid, stable, fixed) | |
| unswerving(adjective, solid, stable, fixed) | |
| wedged(true, fixed, constant, steadfast) | |
| wholehearted(adjective, solid, stable, fixed) |
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Durable on
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| APA | Smart Define. (2015). durable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/durable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "durable thesaurus" https://smartdefine.org/durable/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, durable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/durable/thesaurus/synonyms>. |
| MLA | Smart Define. "durable thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/durable/thesaurus/synonyms> |