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