The Collaborative International Dictionary of English v.0.48:

Remorseful \Re*morse"ful\ (-m?rs"f?l), a.
   1. Full of remorse.
      [1913 Webster]

            The full tide of remorseful passion had abated.
                                                  --Sir W.
                                                  Scott.
      [1913 Webster]

   2. Compassionate; feeling tenderly. [Obs.] --Shak.
      [1913 Webster]

   3. Exciting pity; pitiable. [Obs.] --Chapman.
      [1913 Webster] -- Re*morse"ful*ly, adv. --
      Re*morse"ful*ness, n.
      [1913 Webster]

WordNet (r) 3.0 (2006):

remorsefully
    adv 1: in a rueful manner; "`I made a big mistake,' he said
           ruefully" [syn: ruefully, contritely, remorsefully]