1. in a grey manner; with a grey color or appearance
Usage: literary or descriptive use
2. in a gloomy, dull, or melancholy way
Usage: figurative

Examples

• The sky stretched greyly overhead, promising rain.
• She spoke greyly about the difficult times ahead.
• The morning light filtered greyly through the fog.
• He stared greyly out the window, lost in thought.
• The landscape appeared greyly monotonous in winter.