- Definitions|2
- Thesaurus|1.3k
- Abbreviations|0
111 entries under heartless topic. ×
| stubborn(adjective, determined, resolute, uncompromising, obstinate) | |
| inflexible(adjective, person, strong, hard, secure) | |
| unyielding(adjective, mean, strong, hard, secure) | |
| inexorable(adjective, mean, strong, hard, tough) | |
| unbending(adjective, strong, hard, tough, severe) | |
| relentless(adjective, mean, strong, hard, tough) | |
| unrelenting(adjective, mean, strong, hard, tough) | |
| adamant(adjective, person, mean, strong, hard) | |
| stiff(adjective, hard, tough, severe, rough) | |
| hard(adjective, mean, strong, cool, tough) | |
| stony(adjective, person, mean, hard, cool) | |
| tough(adjective, mean, strong, hard, cool) | |
| hardened(adjective, person, hard, tough, severe) | |
| callous(adjective, person, mean, hard, cool) | |
| grim(adjective, mean, strong, hard, tough) | |
| implacable(adjective, mean, strong, hard, tough) | |
| severe(adjective, mean, strong, hard, tough) | |
| stern(adjective, mean, hard, tough, severe) | |
| unfeeling(adjective, mean, hard, cool, tough) | |
| hard-boiled(adjective, person, strong, hard, tough) |
For more, visit
Obdurate on
Power Thesaurus
| 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> |