- Fatigue is defined as extreme physical or mental tiredness or exhaustion.
An example of fatigue is what you feel after you run a 10-mile marathon.
A woman suffering from fatigue.
- physical or mental exhaustion; weariness
- the cause of this; hard work; toil
- any manual labor or menial duty, other than drill or instruction, assigned to soldiersin full fatigue duty
- sturdy work clothing worn by soldiers doing fatigue duty
- the tendency of a metal or other material to crack and fail under repeated applications of stress
- Physiol. the decreased ability to function or inability to respond of an organism or one of its parts due to prolonged exertion or repeated stimulation
Origin of fatigueFrench ; from fatiguer ; from Classical Latin fatigare, to weary ; from an unverified form fatis, exhaustion ; from base of fames, hunger (see famine) + agere, to drive, make (see act)
- Physical or mental weariness resulting from effort or activity.
- Something, such as tiring effort or activity, that causes tiredness or weariness: the fatigue of a long hike.
- Physiology The decreased capacity or complete inability of an organism, organ, or part to function normally because of excessive stimulation or prolonged exertion.
- The weakening or failure of a material, such as metal or wood, resulting from prolonged stress.
- a. Manual or menial labor, such as barracks cleaning, assigned to soldiers.b. fatigues Clothing worn by military personnel for labor or for field duty.
verbfa·tigued, fa·tigu·ing, fa·tigues
- To tire out; exhaust.
- To create fatigue in (a metal or other material).
Origin of fatigueFrench, from Old French, from fatiguer, to fatigue, from Latin fatīgāre.
(third-person singular simple present fatigues, present participle fatiguing, simple past and past participle fatigued)