Synonyms|135Antonyms|6|Broader|0Narrower|0Related|77

41 entries under harmful topic. ×

9
destructive(adjective, injurious, damaging, fatal)
8
deadly(adjective, killing, injurious, damaging)
7
lethal(adjective, violent, cruel, killing)
6
fatal(adjective, violent, cruel, killing)
5
mortal(adjective, violent, cruel, killing)
5
pernicious(adjective, violent, cruel, injurious)
3
baneful(adjective, violent, cruel, injurious)
3
catastrophic(adjective, injurious, damaging, deadly)
3
devastating(adjective, injurious, damaging, deadly)
3
mutually destructive(expression, adjective, idiom)
3
suicidal(adjective, violent, cruel, killing)
2
calamitous(adjective, injurious, damaging, deadly)
2
cataclysmic(adjective, injurious, damaging, deadly)
2
consumptive(adjective, bad, painful, injurious)
2
detrimental(adjective, bad, painful, injurious)
2
disastrous(adjective, injurious, damaging, deadly)
2
ruinous(adjective, injurious, damaging, deadly)
1
annihilative(adjective, injurious, damaging, deadly)
1
baleful(adjective, violent, cruel, injurious)
1
cancerous(adjective, injurious, damaging, deadly)
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APASmart Define. (2015). internecine thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/internecine/thesaurus/synonyms
ChicagoSmart Define. 2015. "internecine thesaurus" https://smartdefine.org/internecine/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, internecine thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/internecine/thesaurus/synonyms>.
MLASmart Define. "internecine thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/internecine/thesaurus/synonyms>