The Collaborative International Dictionary of English v.0.48:

Sacrilegious \Sac`ri*le"gious\, a. [From sacrilege: cf. L.
   sacrilegus.]
   Violating sacred things; polluted with sacrilege; involving
   sacrilege; profane; impious.
   [1913 Webster]

         Above the reach of sacrilegious hands.   --Pope.
   [1913 Webster] -- Sac`ri*le"gious*ly, adv. --
   Sac`ri*le"gious*ness, n.
   [1913 Webster]

WordNet (r) 3.0 (2006):

sacrilegiousness
    n 1: profaneness by virtue of committing sacrilege