- Definitions|0
- Thesaurus|331
- Abbreviations|1
| one of a kind(expression, originality, uniqueness) | |
| one shot(expression, originality, uniqueness) | |
| onliest(adjective, originality, uniqueness) | |
| only(adjective, originality, uniqueness) | |
| particular(adjective, originality, uniqueness) | |
| peerless(adjective, originality, uniqueness) | |
| second to none(expression, originality, uniqueness) | |
| single(adjective, originality, uniqueness) | |
| singular(adjective, originality, uniqueness) | |
| sole(adjective, originality, uniqueness) | |
| solitary(adjective, originality, uniqueness) | |
| solo(adjective, originality, uniqueness) | |
| unaccompanied(adjective, originality, uniqueness) | |
| unbelievable(adjective, originality, uniqueness) | |
| unequaled(adjective, originality, uniqueness) | |
| unparalleled(adjective, originality, uniqueness) | |
| unrivaled(adjective, originality, uniqueness) |
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| APA | Smart Define. (-0001). once in a lifetime thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/once_in_a_lifetime/thesaurus/synonyms |
| Chicago | Smart Define. -0001. "once in a lifetime thesaurus" https://smartdefine.org/once_in_a_lifetime/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define -0001, once in a lifetime thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/once_in_a_lifetime/thesaurus/synonyms>. |
| MLA | Smart Define. "once in a lifetime thesaurus" 30 November -0001. Web. 29 September 2026. <https://smartdefine.org/once_in_a_lifetime/thesaurus/synonyms> |