Acedia

Acedia ( ə-SEE-dee-ə; also accidie or accedie ACK-sih-dee, from Latin acēdia, and this from Greek ἀκηδία, 'negligence', from ἀ- 'lack of' and -κηδία 'care') has been variously defined as a state of listlessness or torpor, of not caring or not being concerned with one's position or condition in the world. In ancient Greece, akēdía literally meant an inert state without pain or care. Early Christian monks used the term to define a spiritual state of listlessness, and from there the term developed a markedly Christian moral tone. In modern times, it has been taken up by literary figures and connected to depression.