- Definitions|2
- Thesaurus|1.7k
- Abbreviations|0
153 entries under persistent topic. ×
| immovable(adjective, firm, solid, determined, steady) | |
| imperturbable(adjective, calm, quiet, cool, gentle) | |
| inborn(fixed, lasting, remaining, chronic) | |
| inbred(fixed, hardened, lasting, confirmed) | |
| incurable(fixed, hardened, lasting, confirmed) | |
| ineradicable(fixed, hardened, lasting, confirmed) | |
| inflexible(adjective, strong, flat, firm, certain) | |
| ingrained(adjective, fixed, hardened, lasting) | |
| intent(adjective, strong, flat, certain, determined) | |
| liege(adjective, firm, solid, true, fast) | |
| meek(adjective, calm, quiet, gentle, restrained) | |
| mild-tempered(adjective, calm, quiet, gentle, restrained) | |
| monotonous(adjective, constant, abundant, continuous) | |
| nonstop(adjective, constant, continuous, endless) | |
| philosophic(adjective, calm, quiet, cool, gentle) | |
| protracted(adjective, great, deep, high) | |
| quiet(adjective, calm, gentle, indifferent, apathetic) | |
| recurrent(steady, constant, continuous, lasting) | |
| regular(adjective, firm, solid, steady, stable) | |
| resigned(adjective, calm, quiet, cool, gentle) |
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| APA | Smart Define. (2016). enduring thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/enduring/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "enduring thesaurus" https://smartdefine.org/enduring/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, enduring thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/enduring/thesaurus/synonyms>. |
| MLA | Smart Define. "enduring thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/enduring/thesaurus/synonyms> |