7 entries under undying topic. ×
| immortal(adjective, constant, continuous, endless, indefinite) | |
| ageless(adjective, change, endless, enduring, lasting) | |
| perennial(adjective, constant, endless, indefinite, lasting) | |
| immutable(adjective, lasting, permanent, everlasting, unending) | |
| evergreen(adjective, endless, everlasting, eternal, perpetual) | |
| indefinite(adjective, lasting, permanent, everlasting, eternal) | |
| perdurable(lasting, permanent, everlasting, eternal, unending) |
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| APA | Smart Define. (2016). timeless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/timeless/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "timeless thesaurus" https://smartdefine.org/timeless/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, timeless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/timeless/thesaurus/synonyms>. |
| MLA | Smart Define. "timeless thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/timeless/thesaurus/synonyms> |