1. Having component parts closely crowded together
   "a dense population";
   - thick
    
2. Having high relative density or specific gravity
   "dense as lead"
    
3. Hard to pass through because of dense growth
   "dense vegetation";
   - thick
    
4. Permitting little if any light to pass through because of denseness of matter
   "dense smoke";
   - heavy, impenetrable
    
5. Taking more than usual time to learn or understand; lacking intellectual acuity
   "so dense he never understands anything I say to him";
   - dim [informal], dull, dumb, obtuse, slow

Sounds like: demean, demesnee, dent

Derived forms: denser, densest

See also: concentrated, daft [Brit, informal], dumb, foolish, heavy, imbecile, imbecilic, impenetrable, stupid, thick

Encyclopedia: Dense