1
evil(adjective, harmful, injurious, damaging, deadly)
1
extirpative(adjective, harmful, injurious, damaging, deadly)
1
fatal(adjective, grave, harmful, injurious, damaging)
1
feller(adjective, grave, injurious, deadly, destructive)
1
harmful(adjective, injurious, damaging, deadly, fatal)
1
harrowing(adjective, murderous)
1
hurtful(adjective, harmful, injurious, damaging, deadly)
1
injurious(adjective, harmful, damaging, deadly, fatal)
1
internecine(adjective, harmful, injurious, damaging, deadly)
1
killing(adjective, informal, murderous)
1
lethiferous(adjective, harmful, injurious, damaging, deadly)
1
mortal(adjective, grave, harmful, injurious, damaging)
1
noisome(adjective, harmful, injurious, damaging, deadly)
1
noxious(adjective, harmful, injurious, damaging, deadly)
1
pernicious(adjective, grave, harmful, injurious, damaging)
1
pestiferous(adjective, harmful, injurious, damaging, deadly)
1
pestilential(adjective, harmful, injurious, damaging, deadly)
1
red-handed
1
ruinous(adjective, grim, harmful, injurious, damaging)
1
self-destructive
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APASmart Define. (2015). slaughterous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/slaughterous/thesaurus/synonyms
ChicagoSmart Define. 2015. "slaughterous thesaurus" https://smartdefine.org/slaughterous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, slaughterous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/slaughterous/thesaurus/synonyms>.
MLASmart Define. "slaughterous thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/slaughterous/thesaurus/synonyms>