Source : Webster's Revised Unabridged Dictionary (1913)

Despiteful \De*spite"ful\, a. [See {Despite}, and cf.
   {Spiteful}.]
   Full of despite; expressing malice or contemptuous hate;
   malicious. -- {De*spite"ful*ly}, adv. -- {De*spite"ful*ness},
   n.

         Haters of God, despiteful, proud, boasters. --Rom. i.
                                                  30.

         Pray for them which despitefully use you. --Matt. v.
                                                  44.

         Let us examine him with despitefulness and fortune.
                                                  --Book of
                                                  Wisdom ii. 19.

Source : WordNet®

despitefully
     adv : in a maliciously spiteful manner; "pray for them that
           despitefully use us" [syn: {spitefully}]