WordWeb Online

1. Made smooth and bright by or as if by rubbing; reflecting a sheen or glow
   "she brushed her hair until it fell in lustrous auburn waves"
   - bright, burnished, shining, shiny
    
2. Brilliant
   "set a lustrous example for others to follow"; "lustrous actors of the time"
    
3. Reflecting light
   "lustrous auburn hair"
   - glistening, glossy, sheeny, shiny, shining

See also: bright, glorious, lustre [Brit, Cdn], polished

Encyclopedia: Lustrous