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English definition of “malignant”

malignant

adjective uk   /məˈlɪɡ.nənt/ us  

malignant adjective (DISEASE)

describes a disease or a growth that is likely to get worse and lead to death: The process by which malignant cancer cells multiply isn't fully understood. Is the tumour malignant or benign?
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malignant adjective (EVIL)

formal having a strong wish to do harm: He developed a malignant hatred for the land of his birth.
malignantly
adverb uk   /-li/ us  
(Definition of malignant from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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