- Definitions|2
- Thesaurus|1.3k
- Abbreviations|0
497 entries under adjective topic. ×
| rigorous(strong, hard, tough, severe) | |
| set in stone(determined, resolute, obstinate, stubborn) | |
| unshakeable(determined, resolute, uncompromising) | |
| unswayable(determined, resolute, rigid, obstinate) | |
| austere(mean, strong, hard, tough) | |
| cold-blooded(person, mean, hard, cool) | |
| hardheaded(strong, hard, tough, determined) | |
| hidebound(severe, determined, resolute, obstinate) | |
| merciless(person, mean, hard, tough) | |
| pat(difficult, determined, resolute, obstinate) | |
| pitiless(mean, hard, tough, severe) | |
| refractory(tough, firm, difficult, determined) | |
| resolved(strong, determined, definite, resolute) | |
| standing pat(determined, resolute, obstinate, uncompromising) | |
| strict(strong, hard, tough, severe) | |
| uncompassionate(person, mean, hard, cool) | |
| unrepentant | |
| wilful(determined, resolute, uncompromising, unshakeable) | |
| cold(mean, hard, cool, tough) | |
| cruel(mean, strong, hard, cool) |
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| APA | Smart Define. (2016). obdurate thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/obdurate/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "obdurate thesaurus" https://smartdefine.org/obdurate/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, obdurate thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/obdurate/thesaurus/synonyms>. |
| MLA | Smart Define. "obdurate thesaurus" 23 March 2016. Web. 26 September 2026. <https://smartdefine.org/obdurate/thesaurus/synonyms> |