- somber, sombre - grave or even gloomy in character; "solemn and mournful music"; "a suit of somber black"; "a somber mood"
Antonym: cheerful (indirect, via cheerless)
- drab, sober, somber, sombre - lacking brightness or color; dull; "drab faded curtains"; "sober Puritan gray"; "children in somber brown clothes"
Antonyms: colorful, colourful (indirect, via colorless)