107 entries under obstinate topic. ×
| relentless(tough, firm, persistent, stubborn) | |
| single-minded(adjective, tough, firm, persistent) | |
| unregenerate(adjective, persistent, insistent, dogged) | |
| violent(adjective, mean, hard, rough, harsh) | |
| cussed(tough, firm, persistent, stubborn) | |
| desperate(adjective, hard, severe, difficulty, rough) | |
| exacting(adjective, tough, persistent, problematic) | |
| hard-line(difficult, awkward, persistent, stubborn) | |
| irritable(adjective, tough, grim, restless) | |
| stern(adjective, persistent, insistent, dogged) | |
| anal-retentive(adjective, persistent, insistent, dogged) | |
| arbitrary(adjective, hard, severe, rough, harsh) | |
| bull-headed(adjective, stubborn, willful) | |
| drastic(adjective, hard, severe, rough, harsh) | |
| ferocious(adjective, hard, severe, rough, harsh) | |
| fierce(adjective, hard, severe, rough, harsh) | |
| hard-nosed(firm, determined, impulsive, stubborn) | |
| hard-shelled(adjective, persistent, insistent, dogged) | |
| hell-bent(adjective, persistent, insistent, dogged) | |
| hidebound(adjective, persistent, insistent, dogged) |
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| APA | Smart Define. (2015). refractory thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/refractory/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "refractory thesaurus" https://smartdefine.org/refractory/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, refractory thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/refractory/thesaurus/synonyms>. |
| MLA | Smart Define. "refractory thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/refractory/thesaurus/synonyms> |