accidia

In the Christian moral tradition, sloth (Latin: acedia, accidia, pigritia) is one of the seven capital sins, often called the seven deadly sins; these sins are called the capital sins because they lead easily to other sins. Sloth is defined as spiritual and/or actual apathy or laziness, putting off what God asks you to do, or not doing it or anything at all. Acedia is a Latin word, from Greek akedia, literally meaning "absence of caring".
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n. sloth, laziness, aversion to work or strenuous activity

sloth.