1. Having an irregularly notched or toothed margin as though gnawed
   "The jaggy edges of the leaf looked as if tiny insects had been nibbling on it";
   - erose, jagged, notched, toothed
    
2. Having a sharply uneven surface or outline
   "the jaggy outline of the crags";
   - jagged, scraggy

Derived forms: jaggier, jaggiest

See also: rough, uneven

Encyclopedia: Jaggy