- Definitions|2
- Thesaurus|652
- Abbreviations|0
67 entries under tough topic. ×
| contumacious(adjective, firm, determined, unreasonable) | |
| opinionated(adjective, firm, determined, resolute) | |
| relentless(adjective, strong, firm, energetic) | |
| persevering(adjective, strong, firm, determined) | |
| perverse(adjective, firm, resist, determined) | |
| refractory(adjective, firm, difficult, determined) | |
| rigid(adjective, determined, resolute, obstinate) | |
| stiff-necked(adjective, firm, resist, determined) | |
| unshakable(adjective, firm, determined, resolute) | |
| fixed(adjective, firm, determined, resolute) | |
| self-willed(adjective, firm, difficult, determined) | |
| unbending(adjective, determined, resolute, obstinate) | |
| unswerving(adjective, strong, firm, determined) | |
| inexorable(adjective, determined, resolute, obstinate) | |
| staunch(adjective, strong, firm, determined) | |
| indomitable(adjective, strong, firm, difficult) | |
| single-minded(adjective, firm, determined, resolute) | |
| wayward(adjective, difficult, awkward, obstinate) | |
| recalcitrant(adjective, firm, difficult, awkward) | |
| uncooperative(adjective, difficult, awkward, obstinate) |
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| APA | Smart Define. (2015). pertinacious thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/pertinacious/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "pertinacious thesaurus" https://smartdefine.org/pertinacious/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, pertinacious thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/pertinacious/thesaurus/synonyms>. |
| MLA | Smart Define. "pertinacious thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/pertinacious/thesaurus/synonyms> |