455 entries under adjective topic. ×
| abiding(strong, tough, continue, flat) | |
| inveterate(usual, obstinate, established, insistent) | |
| perennial(continue, constant, continuous, enduring) | |
| persisting(strong, tough, firm, determined) | |
| recurrent(steady, regular, constant, continuous) | |
| regular(usual, steady, routine, normal) | |
| single-minded(tough, intense, deliberate, determined) | |
| unchangeable(strong, certain, definite, resolute) | |
| devoted(strong, firm, determined, steady) | |
| immutable(strong, firm, stable, constant) | |
| set(strong, tough, flat, firm) | |
| unchanging(firm, certain, steady, stable) | |
| assiduous | |
| faithful(strong, firm, certain, steady) | |
| frequent(common, steady, regular, constant) | |
| indomitable(strong, firm, determined, steady) | |
| industrious(perseverance, hardworking) | |
| sedulous | |
| tough(firm, unreasonable, grim, resolute) | |
| undeviating(strong, flat, intense, certain) |
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| APA | Smart Define. (2015). persistent thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/persistent/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "persistent thesaurus" https://smartdefine.org/persistent/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, persistent thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/persistent/thesaurus/synonyms>. |
| MLA | Smart Define. "persistent thesaurus" 1 June 2015. Web. 21 September 2026. <https://smartdefine.org/persistent/thesaurus/synonyms> |