lusterless

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

The lips were of the usual marble pallor. The eyes were lustreless.

His thick, heavy, languid, lustreless black hair fell down behind his ears on to his shoulders, in that musicianlike way that is so offensive to the normal Englishman.

Without brilliance, unremarkable.

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