- Definitions|2
- Thesaurus|1.3k
- Abbreviations|0
101 entries under heartless topic. ×
| stern(adjective, person, appearance, mean, hard) | |
| tough(adjective, hard, severe, rough, harsh) | |
| dog-eat-dog(adjective, mean, hard, harsh, cruel) | |
| uncompromising(adjective, hard, rough, harsh, cruel) | |
| cold(adjective, mean, hard, tough, severe) | |
| stony-hearted(adjective, cold, cruel, unfeeling, unsympathetic) | |
| unsparing(adjective, mean, severe, rough, difficult) | |
| mortal(adjective, mean, harsh, cruel, determined) | |
| feral(adjective, mean, harsh, violent, cruel) | |
| adamant(adjective, person, mean, hard, rough) | |
| cold-hearted(adjective, hard, tough, severe, cold) | |
| compassionless(adjective, mean, hard, cruel, unfeeling) | |
| hard-boiled(adjective, person, hard, severe, rough) | |
| uncaring(adjective, person, mean, hard, tough) | |
| unappeasable(adjective, mean, harsh, cruel, determined) | |
| uncalled-for(adjective, mean, cruel, senseless, pitiless) | |
| unmoved(adjective, cold, cruel, unfeeling, unsympathetic) | |
| apathetic(adjective, person, hard, tough, severe) | |
| exacting(adjective, hard, tough, severe, rough) | |
| frigid(adjective, hard, rocky, pebbly) |
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| APA | Smart Define. (2016). merciless thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/merciless/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "merciless thesaurus" https://smartdefine.org/merciless/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2016, merciless thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/merciless/thesaurus/synonyms>. |
| MLA | Smart Define. "merciless thesaurus" 31 March 2016. Web. 30 September 2026. <https://smartdefine.org/merciless/thesaurus/synonyms> |