こうはい荒廃kouhai
1.
A state in which the inherent order or structure has been lost, leading to a condition where the subject seems utterly useless or unmanageable.
2.
The process or situation of becoming desolate and neglected, to the point where it is beyond recovery or restoration.
3.
A deterioration of one's surroundings or circumstances, resulting in a lack of vitality and hope.
4.
The decline into a barren and lifeless condition, often associated with neglect or abandonment.
5.
The experience of emotional or psychological desolation, leading to a sense of hopelessness and disrepair.
Example:
その国は戦争で荒廃し てしまった。