- Definitions|2
- Thesaurus|1.2k
- Abbreviations|0
134 entries under firm topic. ×
| unwearied(adjective, strong, determined, steady) | |
| valiant(adjective, strong, tough, vigorous) | |
| able(adjective, strong, sound, tough, fit) | |
| attached(secure, true, fixed, constant) | |
| capable(adjective, strong, sound, tough, fit) | |
| close(true, fixed, constant, steadfast) | |
| continued(adjective, strong, determined, steady) | |
| driven(adjective, determined, serious, resolute) | |
| eager beaver(expression, adjective, strong, determined) | |
| fastened(adjective, strong, secure, solid) | |
| fireball(adjective, strong, determined, steady) | |
| fortified(adjective, strong, solid, true) | |
| go-go(adjective, strong, determined, steady) | |
| grind(adjective, strong, determined, steady) | |
| incessant(adjective, strong, determined, steady) | |
| inexhaustible(adjective, strong, determined, steady) | |
| mighty(adjective, strong, hard, sound, tough) | |
| muscular(adjective, strong, sound, tough, fit) | |
| ornery(tough, unreasonable, grim, inflexible) | |
| remorseless(adjective, tough, unreasonable, grim) |
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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> |