19 entries under lethal topic. ×

8
deadly(adjective, harmful, killing, injurious, damaging)
6
fatal(adjective, violent, cruel, harmful, killing)
5
harmful(adjective, violent, cruel, injurious, damaging)
5
mortal(adjective, violent, cruel, harmful, killing)
5
pernicious(adjective, violent, cruel, harmful, injurious)
3
baneful(adjective, violent, cruel, harmful, injurious)
3
murderous(adjective, injurious, damaging, destructive, fatal)
3
suicidal(adjective, violent, cruel, harmful, killing)
3
virulent(adjective, injurious, damaging, destructive, fatal)
1
baleful(adjective, violent, cruel, harmful, injurious)
1
dangerous(adjective, injurious, damaging, destructive, fatal)
1
deleterious(adjective, violent, cruel, harmful, injurious)
1
injurious(adjective, violent, cruel, harmful, damaging)
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, fatal)
1
toxic(adjective, bad, violent, harmful, injurious)
1
venomous(adjective, violent, cruel, harmful, injurious)
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APASmart Define. (2015). internecine thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/internecine/thesaurus/synonyms
ChicagoSmart Define. 2015. "internecine thesaurus" https://smartdefine.org/internecine/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, internecine thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/internecine/thesaurus/synonyms>.
MLASmart Define. "internecine thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/internecine/thesaurus/synonyms>