Synonyms of the word

cancerous

• adj. (oncology) Relating to or affected with cancer.
• adj. Growing or spreading rapidly to the point of harm.

malign

• adj. evil or malignant in disposition, nature, intent or influence.
• adj. malevolent.
• adj. (oncology) malignant.
• v. (transitive) To make defamatory statements about; to slander or traduce.
• v. (transitive, archaic) To treat with malice; to show hatred toward; to abuse; to wrong.

malignant

• adj. Harmful, malevolent, injurious.
• adj. (medicine) Tending to produce death; threatening a fatal issue.
• n. A deviant; A person who is hostile or destructive to society.