listlessness

This term describes a profound lack of vitality that transcends simple boredom or temporary tiredness. It conveys a heavy, stagnant emotional state where the individual feels incapable of initiating action or finding interest in their surroundings, often associated with depression, chronic illness, or extreme grief.

As an uncountable noun, it refers to a quality or state of being rather than a discrete event. Because it is a mass noun, it cannot be pluralized and requires partitive constructions such as a sense of listlessness or a period of listlessness when referring to specific instances.