- Definitions|1
- Thesaurus|386
- Abbreviations|0
| vehemence | |
| virulence | |
| abusiveness | |
| acrimony | |
| adamancy(ruthlessness, mercilessness, relentlessness) | |
| asperity | |
| beastliness | |
| bestiality(noun, cruelty, harshness, unkindness, callousness) | |
| brutishness(noun, cruelty, harshness, unkindness, coldness) | |
| bullheadedness(ruthlessness, mercilessness, relentlessness) | |
| coarseness(noun, cruelty, harshness, unkindness, callousness) | |
| cold-heartedness(noun, insensitivity, coldness, hardheartedness, ruthlessness) | |
| contumacy(ruthlessness, mercilessness, relentlessness) | |
| cruelly | |
| depravity(noun, cruelty, harshness, unkindness, callousness) | |
| die-hardism(ruthlessness, mercilessness, relentlessness) | |
| doggedness(ruthlessness, mercilessness, relentlessness) | |
| emotionlessness(coldness, hardheartedness) | |
| exigency | |
| fastidiousness |
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| APA | Smart Define. (2015). pitilessness thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/pitilessness/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "pitilessness thesaurus" https://smartdefine.org/pitilessness/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, pitilessness thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/pitilessness/thesaurus/synonyms>. |
| MLA | Smart Define. "pitilessness thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/pitilessness/thesaurus/synonyms> |