- Definitions|1
- Thesaurus|270
- Abbreviations|0
| priceless(adjective, precious, invaluable, inestimable) | |
| unreplaceable | |
| precious(adjective, rare, priceless, invaluable, inestimable) | |
| irrecoverable(adjective, broken, unchangeable, irreversible, irreparable) | |
| valuable(adjective, rare, precious, priceless, invaluable) | |
| indispensable | |
| invaluable(adjective, rare, precious, priceless, inestimable) | |
| irredeemable(adjective, broken, unchangeable, irreversible, irreparable) | |
| unique | |
| irretrievable(adjective, broken, irreversible) | |
| vital(adjective, precious, priceless) | |
| costly(adjective, rare, precious, priceless, invaluable) | |
| dear(adjective, rare, precious, priceless, invaluable) | |
| expensive(adjective, rare, precious, priceless, invaluable) | |
| cherished(adjective, rare, precious, invaluable, inestimable) | |
| distinctive | |
| essential | |
| irremediable(adjective, broken, unchangeable, irreversible, irreparable) | |
| irreparable(adjective, unable) | |
| irreplaceably |
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| APA | Smart Define. (2016). irreplaceable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/irreplaceable/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "irreplaceable thesaurus" https://smartdefine.org/irreplaceable/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, irreplaceable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/irreplaceable/thesaurus/synonyms>. |
| MLA | Smart Define. "irreplaceable thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/irreplaceable/thesaurus/synonyms> |