- Definitions|2
- Thesaurus|136
- Abbreviations|0
| strenuous(adjective, murderous) | |
| toxic(adjective, harmful, injurious, damaging, deadly) | |
| unpleasant(adjective, murderous) | |
| venomous(adjective, harmful, injurious, damaging, deadly) | |
| wrackful(adjective, harmful, injurious, damaging, deadly) | |
| wreckful(adjective, harmful, injurious, damaging, deadly) | |
| aper(demoniac, annihilative) | |
| barbarous | |
| coldblooded(aper, demoniac, annihilative) | |
| demoniac(aper, annihilative) | |
| destroying(adjective, murderous) | |
| ensanguined | |
| exhausting(adjective, murderous) | |
| ferine(aper, demoniac, annihilative) | |
| fierce(grim, aper, demoniac, annihilative, hard-fought) | |
| grave(aper, demoniac, pernicious, annihilative, ill-starred) | |
| grim | |
| handed | |
| heartless | |
| hellish(adjective, murderous) |
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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> |