- Definitions|2
- Thesaurus|1.3k
- Abbreviations|0
98 entries under strict topic. ×
| adamantine(adjective, strong, hard, tough, resist) | |
| dogged(adjective, strong, tough, firm, harsh) | |
| tough(adjective, mean, strong, hard, cool) | |
| grim(adjective, mean, strong, hard, tough) | |
| implacable(adjective, mean, strong, hard, tough) | |
| severe(adjective, mean, strong, hard, tough) | |
| perverse(adjective, mean, tough, firm, harsh) | |
| stern(adjective, mean, hard, tough, severe) | |
| unfeeling(adjective, mean, hard, cool, tough) | |
| hard-boiled(adjective, person, strong, hard, tough) | |
| harsh(adjective, mean, strong, hard, cool) | |
| iron(adjective, strong, hard, tough, firm) | |
| remorseless(adjective, mean, tough, harsh, resist) | |
| unsympathetic(adjective, mean, hard, cool, tough) | |
| steely(adjective, strong, hard, tough, cold) | |
| flinty(adjective, close, strong, hard, tough) | |
| rigorous(adjective, strong, hard, tough, severe) | |
| austere(adjective, mean, strong, hard, tough) | |
| cold-blooded(adjective, person, mean, hard, cool) | |
| pitiless(adjective, mean, hard, tough, severe) |
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| APA | Smart Define. (2016). obdurate thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/obdurate/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "obdurate thesaurus" https://smartdefine.org/obdurate/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, obdurate thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/obdurate/thesaurus/synonyms>. |
| MLA | Smart Define. "obdurate thesaurus" 23 March 2016. Web. 25 September 2026. <https://smartdefine.org/obdurate/thesaurus/synonyms> |