The Collaborative International Dictionary of English v.0.48:

Malevolence \Ma*lev"o*lence\, n. [L. malevolentia. See
   Malevolent.]
   The quality or state of being malevolent; evil disposition
   toward another; inclination to injure others; ill will. See
   Synonym of Malice.
   [1913 Webster]

WordNet (r) 3.0 (2006):

malevolence
    n 1: wishing evil to others [syn: malevolence, malignity]
         [ant: benevolence]
    2: the quality of threatening evil [syn: malevolence,
       malevolency, malice]