81 entries under fixed topic. ×
| resolute(adjective, calm, strong, secure, firm) | |
| safe(adjective, calm, strong, secure, firm) | |
| uniform(adjective, calm, strong, secure, firm) | |
| unwavering(adjective, calm, strong, secure, firm) | |
| adherent(firm, true, constant, steadfast) | |
| allegiant(adjective, firm, solid, stable) | |
| attached(firm, true, constant, steadfast) | |
| certain(adjective, firm, solid, stable) | |
| close(firm, true, constant, steadfast) | |
| constrained(firm, true, constant, steadfast) | |
| cool(adjective, firm, solid, stable) | |
| fortified(firm, true, constant, steadfast) | |
| glued(firm, true, constant, steadfast) | |
| held(firm, true, constant, steadfast) | |
| imperturbable(adjective, firm, solid, stable) | |
| inextricable(firm, true, constant, steadfast) | |
| levelheaded(adjective, firm, solid, stable) | |
| liege(adjective, firm, solid, stable) | |
| never-failing(adjective, firm, solid, substantial, stable) | |
| patterned(adjective, firm, solid, substantial, stable) |
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| APA | Smart Define. (2015). durable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/durable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "durable thesaurus" https://smartdefine.org/durable/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, durable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/durable/thesaurus/synonyms>. |
| MLA | Smart Define. "durable thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/durable/thesaurus/synonyms> |