malignity

noun, plural ma·lig·ni·ties for 2.

1. the state or character of being malign; malevolence; intense ill will; spite.
2. a malignant feeling, action, etc.

noun plural -ties

1. the condition or quality of being malign, malevolent, or deadly
2. (often plural) a malign or malicious act or feeling

n.late 14c., from Old French maligneté, from Latin malignitas “ill-will, spite,” from malignus (see malign (adj.)).