73 entries under merciless topic. ×
| inflexible(adjective, harsh, cruel, determined, fierce) | |
| inhuman(adjective, mean, harsh, cruel, determined) | |
| ironfisted(adjective, mean, severe, harsh, cruel) | |
| malevolent(adjective, mean, bad, evil, harsh) | |
| mean(adjective, severe, harsh, cruel, vicious) | |
| obdurate(adjective, mean, harsh, cruel, determined) | |
| rigid(adjective, harsh, cruel, determined, fierce) | |
| rigorous(adjective, harsh, cruel, determined, fierce) | |
| single-minded(adjective, harsh, cruel, determined, fierce) | |
| stern(adjective, mean, severe, harsh, cruel) | |
| stiff(adjective, harsh, cruel, determined, fierce) | |
| stop at nothing(expression, adjective, idiom, harsh, cruel) | |
| strict(adjective, harsh, cruel, determined, fierce) | |
| stringent(adjective, harsh, cruel, determined, fierce) | |
| unbending(adjective, harsh, cruel, determined, fierce) | |
| uncompromising(adjective, harsh, cruel, determined, fierce) | |
| undeviating(adjective, harsh, cruel, determined, fierce) | |
| unfeeling(adjective, mean, severe, harsh, cruel) | |
| unforgiving(adjective, mean, severe, harsh, cruel) | |
| unsparing(adjective, mean, severe, harsh, cruel) |
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| APA | Smart Define. (2016). mortal thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/mortal/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "mortal thesaurus" https://smartdefine.org/mortal/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2016, mortal thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/mortal/thesaurus/synonyms>. |
| MLA | Smart Define. "mortal thesaurus" 30 March 2016. Web. 30 September 2026. <https://smartdefine.org/mortal/thesaurus/synonyms> |