Great sadness or depression, especially of a thoughtful or introspective nature.
Black bile, formerly thought to be one of the four "cardinal humours" of animal bodies.
Affected with great sadness or depression.
Any bad, miserable, difficult or terrifying situation or experience that arouses anxiety, terror, agony or great displeasure.
A very bad or frightening dream.
A feeling of extreme anxiety or suffocation experienced during sleep; Sleep paralysis.
To have a nightmare.