The Collaborative International Dictionary of English v.0.48:

Loveliness \Love"li*ness\, n. [From Lovely.]
   The state or quality of being lovely.
   [1913 Webster]

         If there is such a native loveliness in the sex as to
         make them victorious when in the wrong, how resistless
         their power when they are on the side of truth!
                                                  --Spectator.
   [1913 Webster]

WordNet (r) 3.0 (2006):

loveliness
    n 1: the quality of being good looking and attractive [syn:
         comeliness, fairness, loveliness, beauteousness]