lusterless

adjective2

1. •
   Without luster, dull, not shiny, flat or matte finished.

   • The lips were of the usual marble pallor. The eyes were lustreless. — 1844
2. •
   Without brilliance, unremarkable.

   • The school was a triumph for her husband after a lustreless career in Hong Kong, but it had brought her low. — 1967