The Collaborative International Dictionary of English v.0.48:

Scornful \Scorn"ful\, a.
   1. Full of scorn or contempt; contemptuous; disdainful.
      [1913 Webster]

            Scornful of winter's frost and summer's sun.
                                                  --Prior.
      [1913 Webster]

            Dart not scornful glances from those eyes. --Shak.
      [1913 Webster]

   2. Treated with scorn; exciting scorn. [Obs.]
      [1913 Webster]

            The scornful mark of every open eye.  --Shak.
      [1913 Webster]

   Syn: Contemptuous; disdainful; contumelious; reproachful;
        insolent.
        [1913 Webster] -- Scorn"ful*ly, adv. --
        Scorn"ful*ness, n.
        [1913 Webster]

WordNet (r) 3.0 (2006):

scornfully
    adv 1: without respect; in a disdainful manner; "she spoke of
           him contemptuously" [syn: contemptuously,
           disdainfully, scornfully, contumeliously]