74 entries under adjective topic. ×

10
malignant(diseased, spreading)
5
destructive(injurious, devastating, malignant, destroying)
4
baneful(harmful, injurious, damaging, deadly)
3
evil(harmful, injurious, damaging, deadly)
3
harmful(injurious, damaging, deadly, fatal)
3
mortal(harmful, injurious, damaging, deadly)
2
calamitous(harmful, injurious, damaging, deadly)
2
cankerous
2
carcinogenic
2
carcinomatous
2
malign
2
fatal(harmful, injurious, damaging, deadly)
2
hurtful(harmful, injurious, damaging, deadly)
2
ill
2
injurious(harmful, damaging, deadly, fatal)
2
noxious(harmful, injurious, damaging, deadly)
2
pestilent
2
poisonous
2
ruinous(harmful, injurious, damaging, deadly)
2
tumorous
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APASmart Define. (2015). cancerous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/cancerous/thesaurus/synonyms
ChicagoSmart Define. 2015. "cancerous thesaurus" https://smartdefine.org/cancerous/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, cancerous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/cancerous/thesaurus/synonyms>.
MLASmart Define. "cancerous thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/cancerous/thesaurus/synonyms>