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1.
1. Dark and gloomy: Lacking light or brightness and producing a dull, dark, or melancholy atmosphere.

2. Dark in color: Having a color or tone that is dark, dull, or suitable for a serious mood or occasion.

3. Serious and melancholy: Marked by or conveying strict seriousness combined with sadness or a troubled state of mind.

NOTE: Sombre is the American version of the word 'Somber'. Somber is Canadian and UK spelling.

A sombre song, depressing and without variety.
by Jafje March 31, 2007