fatigue
n. uncountablen. a feeling of being very tired in your body or mind, usually because of hard work or stress. It is more than just being sleepy; it is a deep lack of energy.
n. extreme tiredness resulting from mental or physical exertion or illness. In technical contexts, it refers to the weakening of a material caused by repeated stress or pressure.
He suffered from severe fatigue after the long hike.
The doctor explained that her chronic fatigue was likely caused by a combination of poor sleep and high stress at work.
Structural fatigue in the aircraft's fuselage was identified as the primary cause of the incident, leading to a mandatory inspection of all older models in the fleet.
From French fatigue, from fatiguer, from Latin fatīgāre (“to weary, tire, vex, harass”).
From French fatiguer, from Latin fatīgāre (“to weary, tire, vex, harass”).
Commonly used in the phrase 'compassion fatigue' or 'decision fatigue' to describe mental exhaustion in specific roles.