burnout
exhaustion / fuel depletion / electrical failure
Noun
This term describes a state of total depletion where the internal resources of a person or a machine are completely spent. In a psychological sense, it carries a heavy connotation of hopelessness and chronic fatigue, often resulting from an imbalance between high demands and low support in a professional environment. Technically, the word refers to the absolute end of a process, whether it is the physical destruction of a circuit through heat or the precise moment a rocket engine ceases to provide thrust because its propellant is gone.
Meanings
Noun
A state of emotional, physical, and mental exhaustion caused by excessive and prolonged stress.
"After working eighty hours a week for a year, he suffered a complete burnout."