evilness(n = noun.attribute) evil - the quality of being morally wrong in principle or practice; "attempts to explain the origin of evil in the world"
is a kind of immorality
has particulars: malevolence, malevolency, malice, malignance, malignancy, malignity, balefulness, maleficence, mischief, worst, nefariousness, ugliness, vileness, wickedness, reprehensibility, villainousness, villainy, perverseness, perversity, error, wrongdoing, frailty, vice
Antonym: goodness
Derived forms adjective evil1, adjective evil2
The condition or quality of being evil; badness; viciousness; malignity; vileness; as, evilness of heart; the evilness of sin. [1913 Webster]