- Definitions|2
- Thesaurus|2k
- Abbreviations|0
62 entries under tough topic. ×
| indocile(adjective, control, order, resist) | |
| iron(adjective, set, mean, strong, hard) | |
| purposeful(adjective, strong, firm, deliberate) | |
| solid(adjective, strong, firm, determined) | |
| callous(adjective, mean, hard, severe) | |
| hard-boiled(adjective, mean, hard, rough) | |
| hard-line(adjective, hard, rough, firm) | |
| hard as nails(expression, adjective, idiom, firm) | |
| incompliant(firm, difficult, fixed, rigid) | |
| locked in(expression, adjective, firm, determined) | |
| unpliable(adjective, difficult, wild, awkward) | |
| aloof(adjective, firm, fixed, rigid) | |
| awkward(difficult, irritable, stiff, stubborn) | |
| formal(adjective, strong, firm, cold) | |
| hard-shelled(adjective, hard, severe, rough) | |
| hardboiled(adjective, serious, resolute, persistent) | |
| incurable(difficult, persistent, hardened, lasting) | |
| rough(adjective, hard, severe, harsh) | |
| unfeeling(adjective, mean, hard, harsh) | |
| unflexible(adjective, firm, fixed, rigid) |
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| APA | Smart Define. (2015). obstinate thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/obstinate/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "obstinate thesaurus" https://smartdefine.org/obstinate/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, obstinate thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/obstinate/thesaurus/synonyms>. |
| MLA | Smart Define. "obstinate thesaurus" 3 August 2015. Web. 30 September 2026. <https://smartdefine.org/obstinate/thesaurus/synonyms> |