- Definitions|1
- Thesaurus|337
- Abbreviations|0
| recurring(adjective, continuous, everlasting, uninterrupted) | |
| refillable | |
| reliable | |
| returnable | |
| rooted | |
| routine | |
| seaworthy | |
| secure | |
| set in concrete(expression, stable, constant, enduring, lasting) | |
| set in stone(expression, idiom, stable, constant, lasting) | |
| settled(adjective, hardened, confirmed, chronic) | |
| shatter-proof | |
| tedious(long, drawn-out) | |
| time-honored(familiar, established, long-established) | |
| tiresome(long, drawn-out) | |
| unabating | |
| unchanged | |
| unmitigated | |
| unremitting(continuous, permanent, everlasting, uninterrupted, long-term) | |
| unwavering |
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| APA | Smart Define. (2015). long-lasting thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/long-lasting/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "long-lasting thesaurus" https://smartdefine.org/long-lasting/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, long-lasting thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/long-lasting/thesaurus/synonyms>. |
| MLA | Smart Define. "long-lasting thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/long-lasting/thesaurus/synonyms> |