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]

Moby Thesaurus II by Grady Ward, 1.0:

73 Moby Thesaurus words for "malevolence":
   Anglophobia, Russophobia, abhorrence, abomination, antagonism,
   anti-Semitism, antipathy, aversion, bad blood, bad temper,
   bad will, badness, belligerence, bigotry, blighting glance, clash,
   clashing, collision, conflict, contention, damnability, despite,
   despitefulness, detestation, dislike, evil disposition, evil eye,
   evilness, execration, friction, grudge, hate, hatred, hostility,
   ill nature, ill will, ill-disposedness, improperness, inaccuracy,
   inauspiciousness, inexpedience, inferiority, invalidity, loathing,
   malice, maliciousness, malignity, malocchio, misandry, misanthropy,
   misogyny, moral badness, odium, peccancy, quarrelsomeness,
   race hatred, racism, reprehensibility, repugnance, spite,
   spitefulness, spleen, unfavorableness, unhealthiness, unkindness,
   unpleasantness, unskillfulness, vials of hate, vials of wrath,
   viciousness, whammy, wickedness, xenophobia