The Collaborative International Dictionary of English v.0.48:

jagged \jag"ged\ (j[a^]g"g[e^]d), a.
   Having jags; having rough, sharp notches, protuberances, or
   teeth; cleft; laciniate; divided; as, jagged rocks. " Jagged
   vine leaves' shade." --Trench. -- Jag"ged*ly, adv. --
   Jag"ged*ness, n.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

jaggedness \jaggedness\ n.
   something irregular like a bump on or crack in a smooth
   surface.
   [WordNet 1.5]

WordNet (r) 3.0 (2006):

jaggedness
    n 1: something irregular like a bump or crack in a smooth
         surface