[1] : The Collaborative International Dictionary of English v.0.48

malevolent \malev"olent\, a. l. malevolens, -entis; male ill
   + volens, p. pr. of velle to be willing or disposed, to wish.
   see malice, and voluntary.
   wishing evil; disposed to injure others; rejoicing in
   another's misfortune.
   1913 webster

   syn: ill-disposed; envious; mischievous; evil-minded;
        spiteful; malicious; malignant; rancorous.
        1913 webster
see also:
malice voluntary 

[2] : WordNet (r) 2.0

malevolent
     adj 1: wishing or appearing to wish evil to others; arising from
            intense ill will or hatred; "a gossipy malevolent old
            woman"; "failure made him malevolent toward those who
            were successful" syn: malicious ant: benevolent
     2: extremely malevolent or malicious; "the malignant tongues of
        gossipers" syn: malignant
     3: having or exerting a malignant influence; "malevolent
        stars"; "a malefic force" syn: malefic, malign, evil
see also:
malicious benevolent malignant malefic malign evil 

[3] : Moby Thesaurus II by Grady Ward, 1.0

87 moby thesaurus words for "malevolent":
   acrid, antagonistic, antipathetic, bad, baleful, baneful,
   belligerent, bitchy, bitter, black, caustic, clashing, colliding,
   conflicting, corroding, corrosive, corrupting, corruptive,
   counterproductive, criminal, damaging, deadly, deleterious,
   despiteful, detrimental, disadvantageous, disserviceable,
   distressing, evil, evil-disposed, full of hate, harmful, hateful,
   hostile, hurtful, ill, ill-affected, ill-conditioned, ill-disposed,
   ill-intentioned, ill-natured, improper, inaccurate, inauspicious,
   inexpedient, inferior, injurious, invalid, lethal, malefic,
   maleficent, malicious, malign, malignant, mischievous, noisome,
   noxious, ominous, peccant, pernicious, poisonous, prejudicial,
   quarrelsome, rancorous, repugnant, scatheful, set against, sinful,
   sinister, sore, spiteful, toxic, unfavorable, unhealthy, unkind,
   unpleasant, unskillful, untoward, venenate, veneniferous, venenous,
   venomous, vicious, virulent, vitriolic, wicked, wrong

Malevolent >> M Words
Malevolent, definition of term: Malevolent
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