malignant

MALIG'NANT, a. [L. malignus,maligno, from malus, evil.]

1. Malicious; having extreme malevolence or enmity; as a malignant heart.

2. Unpropitious; exerting pernicious influence; as malignant start.

3. Virulent; as a malignant ulcer.

4. Dangerous to life; as a malignant fever.

5. Extremely heinous; as the malignant nature of sin.

MALIG'NANT, n. A man of extreme enmity or evil intentions. [Not used.]