Accidie is a word used to describe a state of despondency or listlessness caused by a lack of motivation or energy. There are several words that can be used as synonyms for accidie, including apathy, ennui, lassitude, torpor and lethargy. All of these words convey a sense of stagnation and a lack of vigour, whether it is physical, mental or emotional. While they might be used in different contexts, they can all help to describe the feeling of being in a state of inactivity or indifference. Whether you use accidie or one of its synonyms, it is clear that this is a state that can negatively impact one's well-being and productivity.