- Definitions|2
- Thesaurus|957
- Abbreviations|0
possible profanity
30 entries under permanent topic. ×
| continued(lasting, everlasting, unending, undying) | |
| forever(lasting, everlasting, unending, undying) | |
| indefinite(lasting, everlasting, unending, undying) | |
| invariable(adjective, fixed, unchanging, immovable) | |
| persistent(lasting, everlasting, unending, undying) | |
| termless(lasting, everlasting, unending, undying) | |
| unfading(fixed, lasting, unchangeable, everlasting) | |
| inflexible(fixed, unchanging, static, unchangeable) | |
| relentless(lasting, everlasting, unending, undying) | |
| unchangeable(fixed, unchanging, static) |
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| APA | Smart Define. (2016). ageless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/ageless/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "ageless thesaurus" https://smartdefine.org/ageless/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, ageless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/ageless/thesaurus/synonyms>. |
| MLA | Smart Define. "ageless thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/ageless/thesaurus/synonyms> |