1
strenuous(adjective, murderous)
1
toxic(adjective, harmful, injurious, damaging, deadly)
1
unpleasant(adjective, murderous)
1
venomous(adjective, harmful, injurious, damaging, deadly)
1
wrackful(adjective, harmful, injurious, damaging, deadly)
1
wreckful(adjective, harmful, injurious, damaging, deadly)
0
aper(demoniac, annihilative)
0
barbarous
0
coldblooded(aper, demoniac, annihilative)
0
demoniac(aper, annihilative)
0
destroying(adjective, murderous)
0
ensanguined
0
exhausting(adjective, murderous)
0
ferine(aper, demoniac, annihilative)
0
fierce(grim, aper, demoniac, annihilative, hard-fought)
0
grave(aper, demoniac, pernicious, annihilative, ill-starred)
0
grim
0
handed
0
heartless
0
hellish(adjective, murderous)
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APASmart Define. (2015). slaughterous thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/slaughterous/thesaurus/synonyms
ChicagoSmart Define. 2015. "slaughterous thesaurus" https://smartdefine.org/slaughterous/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, slaughterous thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/slaughterous/thesaurus/synonyms>.
MLASmart Define. "slaughterous thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/slaughterous/thesaurus/synonyms>