- Definitions|2
- Thesaurus|1.2k
- Abbreviations|0
134 entries under firm topic. ×
| undaunted(adjective, strong, tough, steady) | |
| balky(tough, unreasonable, grim, inflexible) | |
| bound(adjective, strong, flat, solid) | |
| dedicated(adjective, clear, strong, tough, severe) | |
| iron(adjective, strong, tough, solid) | |
| lasting(adjective, tough, true, fixed) | |
| loyal(adjective, true, fixed, resolute) | |
| opinionated(tough, unreasonable, grim, persistent) | |
| patient(adjective, strong, determined, steady) | |
| recalcitrant(adjective, tough, difficult, wild) | |
| stable(adjective, strong, sound, secure, tough) | |
| unfailing(adjective, strong, determined, steady) | |
| willful(adjective, tough, difficult, resist) | |
| adherent(true, fixed, constant, tacky) | |
| contumacious(adjective, tough, persistent, obstinate) | |
| powerful(adjective, strong, sound, tough, fit) | |
| self-willed(adjective, tough, difficult, wild) | |
| serious(adjective, strong, determined, resolute) | |
| solid(adjective, strong, sound, secure, tough) | |
| substantial(adjective, strong, sound, tough, fit) |
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| APA | Smart Define. (2015). tenacious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/tenacious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "tenacious thesaurus" https://smartdefine.org/tenacious/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, tenacious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/tenacious/thesaurus/synonyms>. |
| MLA | Smart Define. "tenacious thesaurus" 6 November 2015. Web. 25 September 2026. <https://smartdefine.org/tenacious/thesaurus/synonyms> |