Ma·lig·nance Ma·lig·nan·cy , n.
1. The state or quality of being malignant; extreme malevolence; bitter enmity; malice; disposition toward evil; intense ill will; as, malignancy of heart.
2. Unfavorableness; evil nature.
The malignancy of my fate might perhaps distemner yours. --Shak.
3. Med. Virulence; tendency to a fatal issue; as, the malignancy of an ulcer or of a fever.
5. The state of being a malignant.
n 1: (medicine) a malignant state; progressive and resistant to
treatment and tending to cause death [syn: malignancy]
2: quality of being disposed to evil; intense ill will [syn: malignity,
malignancy] [ant: benignity, benignity]