Source : Webster's Revised Unabridged Dictionary (1913)

Pleasing \Pleas"ing\, a.
   Giving pleasure or satisfaction; causing agreeable emotion;
   agreeable; delightful; as, a pleasing prospect; pleasing
   manners. ``Pleasing harmony.'' --Shak. ``Pleasing features.''
   --Macaulay. -- {Pleas"ing*ly}, adv. -- {Pleas"ing*ness}, n.

   Syn: Gratifying; delightful; agreeable. See {Pleasant}.

Source : WordNet®

pleasingness
     n 1: pleasant palatability [syn: {tastiness}]
     2: a likeable beauty; "the liveliness and pleasingness of dark
        eyes"- T.N. Carver [ant: {unpleasingness}]