WordWeb Online

1. Having teeth especially of a certain number or type; often used in combination
   "saw-toothed"
    
2. Notched like a saw with teeth pointing toward the apex
   - serrate, serrated, saw-toothed, notched
    
3. Having an irregularly notched or toothed margin as though gnawed
   - erose, jagged, jaggy, notched

See also: buck-toothed, cogged, fine-tooth, fine-toothed, gap-toothed, odontoid, rough, sabertoothed [N. Amer], saber-toothed [N. Amer], sabre-toothed [Brit, Cdn], small-toothed, toothlike, toothy, tusked

Antonym: toothless