Somber
Part of speech: adjective
Definition: Dark or dreary in character; joyless, and grim. Dark, lacking color or brightness.
Example sentence: Mourning doesn't always mean zen, mourning doesn't always mean somber, mourning can just be a celebration of a life of people. It's not always about wearing black and listening to a Sarah McLachlan song.
Melancholy
Part of speech: noun
Definition: Black bile, formerly thought to be one of the four "cardinal humours" of animal bodies.Great sadness or depression, especially of a thoughtful or introspective nature.
Part of speech: adjective
Definition: Affected with great sadness or depression.
Example sentence: Saturn seems to have impressed the seal of melancholy on me from the beginning.