Acedia

Acedia (also accidie or accedie, from Latin acedĭa, and this from Greek ἀκηδία, negligence) describes a state of listlessness or torpor, of not caring or not being concerned with one's position or condition in the world. It can lead to a state of being unable to perform one's duties in life. Its spiritual overtones make it related to but distinct from depression. Acedia was originally noted as a problem among monks and other ascetics who maintained a solitary life.