Evilness

(n.) The condition or quality of being evil; badness; viciousness; malignity; vileness; as, evilness of heart; the evilness of sin.

Thesaurus Entries

arrantness, badness, baseness, damnability, devilishness, devilry, deviltry, fiendishness, flagitiousness, foulness, heinousness, hellishness, improperness, inaccuracy, inauspiciousness, inexpedience, inferiority, iniquitousness, invalidity, malevolence, moral badness, naughtiness, nefariousness, peccancy, rankness, reprehensibility, sinfulness, unfavorableness, unhealthiness, unkindness, unpleasantness, unskillfulness, viciousness, vileness, villainousness, wickedness