81 entries under constant topic. ×
| fixed(adjective, strong, sound, secure, tough) | |
| well-built(adjective, calm, strong, sound, secure) | |
| changeless(adjective, set, firm, solid, stable) | |
| everlasting(adjective, strong, stable, enduring) | |
| immutable(adjective, calm, strong, solid, steady) | |
| reliable(adjective, calm, strong, secure, tough) | |
| stalwart(adjective, calm, strong, sound, secure) | |
| tenacious(adjective, strong, sound, secure, tough) | |
| unchangeable(adjective, calm, strong, secure, firm) | |
| unchanging(adjective, set, firm, solid, steady) | |
| imperishable(adjective, stable, enduring, lasting) | |
| set(verb, adjective, calm, strong, secure) | |
| immovable(adjective, strong, secure, firm, solid) | |
| perduring(adjective, tough, stable, sturdy) | |
| staunch(adjective, calm, strong, sound, secure) | |
| well-founded(adjective, calm, strong, sound, secure) | |
| continual(adjective, stable, enduring, lasting) | |
| faithful(firm, true, fixed, steadfast) | |
| secure(adjective, calm, strong, sound, tough) | |
| set in stone(expression, adjective, idiom, calm, strong) |
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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> |