Despondency is a deep, heavy unhappiness in which you have little energy and little hope. It is quieter than panic and longer than a bad afternoon: a low, grey mood that sits on a person. This is a formal, slightly old-fashioned word. Friends, and even many doctors in ordinary talk, are more likely to say feeling down, hopelessness, or depression. You meet despondency in novels, essays, and careful writing. It names the state, not a single tear and not one wild act. Though actually, it is not the same as desperation, even if both hurt. Desperation often pushes a person to do something — a last try, a rash move. Despondency more often stills a person: they sit, they go quiet, they stop reaching. It looks a little like despair, but it is a different family: the feelings live next door, the word-pieces do not.

消沉；意氣消沉（偏書面）