Source : Webster's Revised Unabridged Dictionary (1913)

Remorseful \Re*morse"ful\ (-m?rs"f?l), a.
   1. Full of remorse.

            The full tide of remorseful passion had abated.
                                                  --Sir W.
                                                  Scott.

   2. Compassionate; feeling tenderly. [Obs.] --Shak.

   3. Exciting pity; pitiable. [Obs.] --Chapman. --
      {Re*morse"ful*ly}, adv. -- {Re*morse"ful*ness}, n.

Source : WordNet®

remorseful
     adj : feeling or expressing pain or sorrow for sins or offenses
           [syn: {contrite}, {rueful}, {ruthful}, {sorry}]