noun, noun which may take the genitive case particle 'no'
disappointment; despair; despondency
A formal or literary term for deep disappointment or loss of hope, often used in contexts of personal failure, unfulfilled ambition, or public setback. Can modify nouns with の (e.g., 失意のうちに).
選挙に敗れた候補者は失意の表情を浮かべた。
The candidate who lost the election wore a look of deep disappointment.
失意
It takes time to recover from the depths of despair.
Compound of 失 (lose, miss) and 意 (mind, thought, meaning). The exact historical derivation is uncertain, but the combination conveys the idea of losing one's spirit or hope.