- Definitions|2
- Thesaurus|618
- Abbreviations|0
14 entries under lifelong topic. ×
| indelible(adjective, stability, permanent, long-term) | |
| indissoluble(adjective, stability, permanent, everlasting, eternal) | |
| fixed(adjective, enduring, lasting, permanent, perpetual) | |
| long-term(adjective, permanent) | |
| unremitting(adjective, continuous, permanent, everlasting, uninterrupted) | |
| deep-rooted(adjective, permanent, long-term) | |
| inexhaustible(permanent, long-term) | |
| inexpungible(permanent, long-term) | |
| longstanding(permanent, recurrent, perpetual, long-term) | |
| old(permanent, recurrent, perpetual, long-term) | |
| ongoing(permanent, long-term) | |
| persisting(permanent, long-term) | |
| stable(adjective, enduring, lasting, permanent, perpetual) | |
| till the cows come home(expression, idiom, permanent, long-term) |
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| APA | Smart Define. (2016). undying thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/undying/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "undying thesaurus" https://smartdefine.org/undying/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2016, undying thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/undying/thesaurus/synonyms>. |
| MLA | Smart Define. "undying thesaurus" 26 February 2016. Web. 30 September 2026. <https://smartdefine.org/undying/thesaurus/synonyms> |