1.  maleficence(n = noun.feeling) - doing or causing evil;
is a kind of malevolence, malignity
Antonym: beneficence
Derived form adjective maleficent₁

2.  maleficence(n = noun.attribute) balefulness, mischief - the quality or nature of being harmful or evil;
is a kind of evil, evilness
Antonym: beneficence
Derived form adjective maleficent₁

   Evil doing, esp. to others. [1913 Webster]