melancholy

noun
1

Black bile, formerly thought to be one of the four "cardinal humours" of animal bodies.

2

Great sadness or depression, especially of a thoughtful or introspective nature.

adjective
1

Affected with great sadness or depression.

"Melancholy people don't talk much."

2

Suggestive of wistfulness or subdued emotion.

Source: https://en.wiktionary.org/wiki/melancholy

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