72 entries under adjective topic. ×

9
destructive(harmful, injurious, damaging, fatal)
8
deadly(harmful, killing, injurious, damaging)
7
lethal(violent, cruel, harmful, killing)
6
fatal(violent, cruel, harmful, killing)
5
internal
5
harmful(violent, cruel, injurious, damaging)
5
mortal(violent, cruel, harmful, killing)
5
pernicious(violent, cruel, harmful, injurious)
4
malignant(injurious, damaging, destructive, fatal)
4
domestic
3
baneful(violent, cruel, harmful, injurious)
3
bloody
3
catastrophic(harmful, injurious, damaging, deadly)
3
devastating(harmful, injurious, damaging, deadly)
3
killing
3
murderous(injurious, damaging, destructive, fatal)
3
mutually destructive(expression, idiom, harmful)
3
sanguinary
3
suicidal(violent, cruel, harmful, killing)
3
virulent(injurious, damaging, destructive, fatal)
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APASmart Define. (2015). internecine thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/internecine/thesaurus/synonyms
ChicagoSmart Define. 2015. "internecine thesaurus" https://smartdefine.org/internecine/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, internecine thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/internecine/thesaurus/synonyms>.
MLASmart Define. "internecine thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/internecine/thesaurus/synonyms>