dejection; a state of being downcast or dispirited. Often used as a noun or with the verb 'to be dejected' (消沈する).
試験に落ちて彼はしばらく消沈していた。
He was downcast for a while after failing the exam.
期待していたイベントが中止になり、皆が消沈した。
The event we had been looking forward to was canceled, and everyone felt dejected.
消沈している時は、無理に元気を出さなくてもいい。
When you're feeling down, you don't have to force yourself to be cheerful.