- Definitions|2
- Thesaurus|1.7k
- Abbreviations|0
| hard(adjective, tough, harsh, cruel, grim) | |
| inhumane(adjective, hard, tough, harsh, violent) | |
| killer | |
| nasty(adjective, bad, offensive, violent, wild) | |
| rigorous(adjective, hard, tough, harsh, cruel) | |
| rough(adjective, bad, nasty, offensive, violent) | |
| virulent(injurious, damaging, deadly, destructive, fatal) | |
| brute | |
| cold-blooded | |
| criminal(adjective, difficult) | |
| deathly | |
| devilish | |
| diabolical | |
| ferine(adjective, harsh, violent, cruel, vicious) | |
| grave(aper, demoniac, pernicious, annihilative, ill-starred) | |
| harmful(adjective, bad, offensive, violent, foul) | |
| infernal(adjective, harsh, violent, cruel, vicious) | |
| internecine(injurious, damaging, destructive, fatal, poisonous) | |
| intolerable | |
| malign(adjective, strong, severe, nasty, intense) |
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| APA | Smart Define. (2015). murderous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/murderous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "murderous thesaurus" https://smartdefine.org/murderous/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, murderous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/murderous/thesaurus/synonyms>. |
| MLA | Smart Define. "murderous thesaurus" 17 July 2015. Web. 23 September 2026. <https://smartdefine.org/murderous/thesaurus/synonyms> |