- Definitions|2
- Thesaurus|136
- Abbreviations|0
| inhuman(aper, demoniac, annihilative) | |
| inhumane(aper, demoniac, annihilative) | |
| life and death(expression, idiom, grave, demoniac, pernicious) | |
| merciless | |
| minded | |
| no joke(expression, aper, demoniac, annihilative) | |
| no laughing matter(expression, idiom, aper, demoniac, annihilative) | |
| of consequence(expression, aper, demoniac, annihilative) | |
| of great consequence(expression, idiom, grave, demoniac, pernicious) | |
| out for blood(expression, idiom, aper, demoniac, annihilative) | |
| pitiless | |
| playing hard ball(expression, idiom, aper, demoniac, annihilative) | |
| ravening(aper, demoniac, annihilative) | |
| remorseless | |
| ruthless | |
| sapping(adjective, murderous) | |
| serious(aper, demoniac, annihilative) | |
| smoking(aper, demoniac, annihilative) | |
| sobering(aper, demoniac, annihilative) | |
| stained |
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| APA | Smart Define. (2015). slaughterous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/slaughterous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "slaughterous thesaurus" https://smartdefine.org/slaughterous/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, slaughterous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/slaughterous/thesaurus/synonyms>. |
| MLA | Smart Define. "slaughterous thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/slaughterous/thesaurus/synonyms> |