- Definitions|2
- Thesaurus|1.3k
- Abbreviations|0
133 entries under obstinate topic. ×
| steady(adjective, firm, determined, resolution, resolute) | |
| stiff-necked(adjective, mean, strong, hard, tough) | |
| tough(adjective, mean, strong, hard, severe) | |
| persevering(adjective, strong, tough, firm, determined) | |
| pertinacious(adjective, strong, tough, firm, energetic) | |
| rigorous(adjective, strong, hard, tough, severe) | |
| set in stone(expression, adjective, idiom, mean, hard) | |
| hidebound(adjective, severe, determined, resolute, persistent) | |
| indomitable(adjective, strong, hard, tough, determined) | |
| unswayable(adjective, determined, resolute, rigid) | |
| mulish(adjective, mean, strong, hard, tough) | |
| single-minded(adjective, tough, firm, intense, cruel) | |
| standing pat(adjective, determined, resolute, uncompromising) | |
| steely(adjective, strong, hard, tough, cold) | |
| stringent(adjective, set, hard, severe, sharp) | |
| uncompliant(adjective, tough, firm, resist, determined) | |
| endless(adjective, continue, determined, steady, persistent) | |
| hardheaded(adjective, strong, hard, tough, cold) | |
| incompliant(adjective, resist, determined, resolute, persistent) | |
| intractable(adjective, appearance, strong, tough, firm) |
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| APA | Smart Define. (2015). relentless thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/relentless/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "relentless thesaurus" https://smartdefine.org/relentless/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, relentless thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/relentless/thesaurus/synonyms>. |
| MLA | Smart Define. "relentless thesaurus" 24 June 2015. Web. 28 September 2026. <https://smartdefine.org/relentless/thesaurus/synonyms> |