- Definitions|2
- Thesaurus|985
- Abbreviations|0
48 entries under lasting topic. ×
| set(adjective, calm, strong, secure, firm) | |
| timeless(adjective, permanent, everlasting, unending) | |
| ageless(adjective, fixed, unchanging, permanent) | |
| continual(adjective, steady, stable, regular, fixed) | |
| ceaseless(adjective, persistent, constant, continuous, endless) | |
| continuous(adjective, persistent, constant, endless, indefinite) | |
| perdurable(calm, strong, solid, substantial, constant) | |
| perduring(stable, constant, enduring, perpetual) | |
| relentless(adjective, set, strong, hard, firm) | |
| unfading(stable, fixed, constant, enduring) | |
| unremitting(adjective, persistent, constant, continuous, endless) | |
| continued(permanent, everlasting, unending, undying) | |
| dateless(permanent, everlasting, unending, undying) | |
| diurnal(stable, constant, enduring, perpetual) | |
| for keeps(expression, stable, constant, enduring) | |
| forever(stable, constant, enduring, permanent) | |
| forever and a day(expression, stable, constant, enduring) | |
| immemorial(permanent, everlasting, unending, undying) | |
| imperishable(adjective, stable, fixed, constant, enduring) | |
| incessant(adjective, persistent, constant, continuous, endless) |
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| APA | Smart Define. (2015). immutable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/immutable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "immutable thesaurus" https://smartdefine.org/immutable/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, immutable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/immutable/thesaurus/synonyms>. |
| MLA | Smart Define. "immutable thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/immutable/thesaurus/synonyms> |