- Definitions|2
- Thesaurus|957
- Abbreviations|0
possible profanity
| immortalize | |
| immortals | |
| infernal | |
| inflexible(fixed, unchanging, permanent, static, unchangeable) | |
| lasts | |
| legendary | |
| long | |
| measure | |
| memorable | |
| monotonous | |
| noteworthy | |
| old time favorite(expression, adjective, idiom, immortal) | |
| outstanding | |
| perfect | |
| permanence | |
| permanently | |
| permanents | |
| perpetuities | |
| prolonged | |
| relentless(lasting, permanent, everlasting, unending, undying) |
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| APA | Smart Define. (2016). ageless thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/ageless/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "ageless thesaurus" https://smartdefine.org/ageless/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, ageless thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/ageless/thesaurus/synonyms>. |
| MLA | Smart Define. "ageless thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/ageless/thesaurus/synonyms> |