- Definitions|2
- Thesaurus|371
- Abbreviations|0
| stony(adjective, firm, rigid, unyielding, steely) | |
| unceasing(adjective, lasting, permanent, everlasting, unending) | |
| unchangeable(adjective, unable, lasting, very durable) | |
| rocky(adjective, firm, rigid, unyielding, steely) | |
| all-conquering | |
| firm(adjective, strong, tough, sturdy, permanent) | |
| indissoluble(adjective, strong, stability, unable, lasting) | |
| ineradicable | |
| inextirpable(adjective, unable, lasting) | |
| perennial(adjective, stable, constant, enduring, lasting) | |
| steadfast(adjective, stable, constant, enduring, lasting) | |
| unalterable(adjective, unable, lasting) | |
| continual(stable, constant, enduring, lasting, durable) | |
| dateless(lasting, permanent, everlasting, unending, undying) | |
| fast | |
| immune(adjective, invulnerable) | |
| irrefragable(adjective, unable, lasting) | |
| never-ending | |
| persistent(adjective, tough, stable, moral, sturdy) | |
| rugged |
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| APA | Smart Define. (2015). indestructible thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/indestructible/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "indestructible thesaurus" https://smartdefine.org/indestructible/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, indestructible thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/indestructible/thesaurus/synonyms>. |
| MLA | Smart Define. "indestructible thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/indestructible/thesaurus/synonyms> |