- Definitions|2
- Thesaurus|652
- Abbreviations|0
69 entries under firm topic. ×
| unflinching(adjective, strong, energetic, determined) | |
| unremitting(adjective, strong, energetic, determined) | |
| balky(tough, unreasonable, grim, inflexible) | |
| continuing(adjective, strong, determined, steady) | |
| incompliant(adjective, tough, difficult, awkward) | |
| plugging(adjective, strong, determined, active) | |
| rebellious(adjective, tough, unreasonable, grim) | |
| unwearied(adjective, strong, energetic, determined) | |
| cantankerous(mean, tough, difficult, awkward) | |
| continued(adjective, strong, determined, steady) | |
| cussed(mean, tough, cross, unreasonable) | |
| eager beaver(expression, adjective, strong, determined) | |
| fireball(adjective, strong, determined, steady) | |
| go-go(adjective, strong, determined, steady) | |
| grind(adjective, strong, determined, active) | |
| hard-line(tough, difficult, determined, awkward) | |
| incessant(adjective, strong, determined, steady) | |
| inexhaustible(adjective, strong, energetic, determined) | |
| insubordinate(tough, unreasonable, grim, inflexible) | |
| ornery(mean, tough, cross, unreasonable) |
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| APA | Smart Define. (2015). pertinacious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/pertinacious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "pertinacious thesaurus" https://smartdefine.org/pertinacious/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, pertinacious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/pertinacious/thesaurus/synonyms>. |
| MLA | Smart Define. "pertinacious thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/pertinacious/thesaurus/synonyms> |