malicious

from WordNet (r) 3.0 (2006)
malicious
    adj 1: having the nature of or resulting from malice; "malicious
           gossip"; "took malicious pleasure in...watching me
           wince"- Rudyard Kipling [ant: {unmalicious}]
    
from The Collaborative International Dictionary of English v.0.48
Malicious \Ma*li"cious\, a. [Of. malicius, F. malicieux, fr. L.
   malitiosus. See {Malice}.]
   1. Indulging or exercising malice; harboring ill will or
      enmity.
      [1913 Webster]

            I grant him bloody, . . .
            Sudden, malicious, smacking of every sin
            That has a name.                      --Shak.
      [1913 Webster]

   2. Proceeding from hatred or ill will; dictated by malice;
      as, a malicious report; malicious mischief.
      [1913 Webster]

   3. (Law) With wicked or mischievous intentions or motives;
      wrongful and done intentionally without just cause or
      excuse; as, a malicious act.
      [1913 Webster]

   {Malicious abandonment}, the desertion of a wife or husband
      without just cause. --Burrill.

   {Malicious prosecution} or {Malicious arrest} (Law), a wanton
      prosecution or arrest, by regular process in a civil or
      criminal proceeding, without probable cause. --Bouvier.
      [1913 Webster]

   Syn: Ill-disposed; evil-minded; mischievous; envious;
        malevolent; invidious; spiteful; bitter; malignant;
        rancorous; malign.
        [1913 Webster] -- {Ma*li"cious*ly}, adv. --
        {Ma*li"cious*ness}, n.
        [1913 Webster]
    
from Bouvier's Law Dictionary, Revised 6th Ed (1856)
MALICIOUS. With bad, and unlawful motives; wicked. 
    
from Moby Thesaurus II by Grady Ward, 1.0
52 Moby Thesaurus words for "malicious":
      acrid, antagonistic, antipathetic, baleful, baneful, belligerent,
      bitchy, bitter, catty, caustic, clashing, colliding, conflicting,
      cussed, deleterious, despiteful, detrimental, envious, evil,
      full of hate, green, green-eyed, harmful, hateful, hostile,
      iniquitous, invidious, jealous, malefic, maleficent, malevolent,
      malign, malignant, mean, nasty, noxious, ornery, pernicious, petty,
      poison-pen, poisonous, quarrelsome, rancorous, repugnant,
      set against, sore, spiteful, venomous, vicious, virulent,
      vitriolic, wicked

    

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