- Definitions|2
- Thesaurus|1.2k
- Abbreviations|0
| hale(adjective, strong, sound, tough, fit) | |
| immutable | |
| incompliant(adjective, tough, firm, difficult, wild) | |
| industrious | |
| inelastic(adjective, determined, resolute, obstinate, uncompromising) | |
| intent(adjective, strong, flat, intense, deliberate) | |
| invincible(adjective, persistent, obstinate, insistent, dogged) | |
| leathery | |
| mettlesome(determined, resolute) | |
| overzealous(adjective, precise, thorough, meticulous) | |
| pat(adjective, difficult, determined, serious, resolute) | |
| perverse(adjective, tough, firm, difficult, resist) | |
| retaining | |
| rude | |
| stern(adjective, resolute, persistent, obstinate, insistent) | |
| strict(adjective, persistent, obstinate, insistent, dogged) | |
| sullen | |
| sure(adjective, strong, flat, firm, solid) | |
| unconquerable(adjective, persistent, obstinate, insistent, dogged) | |
| undeviating(adjective, strong, intense, deliberate, determined) |
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| APA | Smart Define. (2015). tenacious thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/tenacious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "tenacious thesaurus" https://smartdefine.org/tenacious/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, tenacious thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/tenacious/thesaurus/synonyms>. |
| MLA | Smart Define. "tenacious thesaurus" 6 November 2015. Web. 21 September 2026. <https://smartdefine.org/tenacious/thesaurus/synonyms> |