n. The character or state of being malign; extreme enmity or evil disposition toward another, proceeding from baseness of heart; malice or malevolence; deep-rooted spite.n. The quality of being malign or malignant; extreme evilness; heinousness; specifically, in pathology, virulence; malignancy.n. Synonyms Ill-will, Enmity (see animosity), maliciousness.n. Destructiveness, deadliness.