162 entries under determined topic. ×
| inexorable(adjective, tough, unreasonable, grim) | |
| intent(adjective, strong, flat, intense, certain) | |
| patient(noun, adjective, strong, firm, energetic) | |
| perseverant | |
| purposeful(adjective, strong, tough, firm, deliberate) | |
| stalwart(adjective, intense, deliberate, resolute) | |
| unshakable(adjective, strong, tough, firm) | |
| bound(adjective, strong, tough, flat, firm) | |
| brave(adjective, resolute, persevering, tenacious) | |
| bullheaded(adjective, tough, firm, unreasonable) | |
| courageous(adjective, firm, resolute, unyielding) | |
| decisive(adjective, serious, resolute, unyielding) | |
| headstrong(adjective, tough, firm, unreasonable) | |
| intractable(adjective, tough, firm, obstinate) | |
| mulish(adjective, tough, firm, resolute) | |
| plucky(adjective, resolute, tenacious) | |
| true(adjective, strong, tough, flat, firm) | |
| uncompromising(adjective, tough, firm, deliberate) | |
| bulldogged(adjective, tenacious) | |
| contumacious(adjective, tough, firm, obstinate) |
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| APA | Smart Define. (2015). persistent thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/persistent/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "persistent thesaurus" https://smartdefine.org/persistent/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, persistent thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/persistent/thesaurus/synonyms>. |
| MLA | Smart Define. "persistent thesaurus" 1 June 2015. Web. 22 September 2026. <https://smartdefine.org/persistent/thesaurus/synonyms> |