Source : Webster's Revised Unabridged Dictionary (1913)

Murderous \Mur"der*ous\, a.
   Of or pertaining to murder; characterized by, or causing,
   murder or bloodshed; having the purpose or quality of murder;
   bloody; sanguinary; as, the murderous king; murderous rapine;
   murderous intent; a murderous assault. ``Murderous coward.''
   --Shak. -- {Mur"der*ous*ly}, adv.

   Syn: Bloody; sanguinary; bloodguilty; bloodthirsty; fell;
        savage; cruel.

Source : WordNet®

murderous
     adj : capable of or conducive to bloodshed; "a cutthroat rogue";
           "a homicidal rage"; "murderous thugs" [syn: {cutthroat},
            {homicidal}]