- Definitions|2
- Thesaurus|371
- Abbreviations|0
114 entries under adjective topic. ×
| unbreakable(strong, tough, firm, rigid) | |
| impenetrable(firm, rigid, unyielding, steely) | |
| permanent(strong, tough, sturdy, constant) | |
| tough(firm, rigid, unyielding, steely) | |
| adamantine(firm, rigid, unyielding, steely) | |
| rock-hard(firm, rigid, unyielding, steely) | |
| flinty(firm, rigid, unyielding, steely) | |
| eternal(pause, endless) | |
| everlasting(strong, stable, constant, unable) | |
| durable(strong, tough, stable, sturdy) | |
| imperishable(moral, constant, stability, unable) | |
| enduring(tough, stable, sturdy, constant) | |
| lasting(strong, tough, stable, sturdy) | |
| fixed(tough, stable, sturdy, constant) | |
| perpetual(stable, moral, constant, unable) | |
| immortal(unable, lasting, imperishable) | |
| abiding(tough, stable, sturdy, constant) | |
| constant(tough, stable, sturdy, enduring) | |
| immutable(stable, constant, enduring, unable) | |
| undying(stability, unable, lasting) |
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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> |