Source : Webster's Revised Unabridged Dictionary (1913)

Melodramatic \Mel`o*dra*mat"ic\, a. [Cf. F. m['e]lodramatique.]
   Of or pertaining to melodrama; like or suitable to a
   melodrama; unnatural in situation or action. --
   {Mel`o*dra*mat"ic*al*ly}, adv.

Source : WordNet®

melodramatically
     adv 1: as in a melodrama; "here, the hero is melodramatically
            reunited with the heroine"
     2: in an overly emotional manner; "she acted melodramatically
        when she called for help"