45 entries under fatal topic. ×

1
baleful(adjective, violent, cruel, harmful, injurious)
1
cancerous(adjective, harmful, injurious, damaging, deadly)
1
cutthroat(adjective, harmful, injurious, damaging, deadly)
1
damaging(adjective, bad, painful, harmful, injurious)
1
dangerous(adjective, injurious, damaging, destructive)
1
deleterious(adjective, violent, cruel, harmful, injurious)
1
dire(adjective, bad, painful, harmful, injurious)
1
eradicative(adjective, harmful, injurious, damaging, deadly)
1
evil(adjective, harmful, injurious, damaging, deadly)
1
extirpative(adjective, harmful, injurious, damaging, deadly)
1
fell(adjective, harmful, injurious, damaging, deadly)
1
hurtful(adjective, harmful, injurious, damaging, deadly)
1
injurious(adjective, violent, cruel, harmful, damaging)
1
lethiferous(adjective, harmful, killing, injurious, damaging)
1
noisome(adjective, harmful, injurious, damaging, deadly)
1
noxious(adjective, violent, cruel, harmful, injurious)
1
pestiferous(adjective, bad, violent, harmful, injurious)
1
pestilential(adjective, violent, cruel, harmful, injurious)
1
poisonous(adjective, injurious, damaging, destructive)
1
slaughterous(adjective, harmful, injurious, damaging, deadly)
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APASmart Define. (2015). internecine thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/internecine/thesaurus/synonyms
ChicagoSmart Define. 2015. "internecine thesaurus" https://smartdefine.org/internecine/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, internecine thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/internecine/thesaurus/synonyms>.
MLASmart Define. "internecine thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/internecine/thesaurus/synonyms>