- Definitions|2
- Thesaurus|652
- Abbreviations|0
207 entries under adjective topic. ×
| unrelenting(strong, tough, cold, determined) | |
| willful(strong, tough, firm, difficult) | |
| uncompromising(tough, firm, determined, resolute) | |
| contumacious(tough, firm, determined, unreasonable) | |
| opinionated(tough, firm, determined, resolute) | |
| relentless(strong, tough, firm, energetic) | |
| hard-nosed(determined, resolute, obstinate, uncompromising) | |
| indefatigable(strong, firm, determined, steady) | |
| insistent(determined, resolute, obstinate, uncompromising) | |
| persevering(strong, tough, firm, determined) | |
| perverse(tough, firm, resist, determined) | |
| refractory(tough, firm, difficult, determined) | |
| rigid(tough, determined, resolute, obstinate) | |
| stiff-necked(tough, firm, resist, determined) | |
| untiring(determined, persevering) | |
| unwavering(strong, firm, determined, steady) | |
| deaf(stubborn, unwilling) | |
| diligent | |
| tireless(strong, firm, energetic, determined) | |
| unfaltering(strong, firm, energetic, determined) |
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| APA | Smart Define. (2015). pertinacious thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/pertinacious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "pertinacious thesaurus" https://smartdefine.org/pertinacious/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, pertinacious thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/pertinacious/thesaurus/synonyms>. |
| MLA | Smart Define. "pertinacious thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/pertinacious/thesaurus/synonyms> |