| irreversibly | |
| lasting(adjective, severe) | |
| methodical(adjective, even, rigid, inflexible, reliable) | |
| remediless | |
| resolute | |
| reverseless | |
| ruined | |
| straight(adjective, even, rigid, inflexible, reliable) | |
| unbroken(adjective, even, rigid, inflexible, reliable) | |
| undone | |
| unmodifiable(adjective, strong, fixed, normal, even) | |
| unredeemable | |
| unswerving | |
| unvarying(adjective, fixed, even, rigid, inflexible) | |
| beyond repair(expression, adjective, idiom, broken, unchangeable) | |
| chronic | |
| compatible(adjective, normal, even, rigid, inflexible) | |
| confirmed | |
| consonant(adjective, normal, even, rigid, inflexible) | |
| deep-dyed |
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| APA | Smart Define. (2015). irreversible thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/irreversible/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "irreversible thesaurus" https://smartdefine.org/irreversible/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, irreversible thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/irreversible/thesaurus/synonyms>. |
| MLA | Smart Define. "irreversible thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/irreversible/thesaurus/synonyms> |