fatigue Definition

  • 1extreme tiredness resulting from mental or physical exertion or illness
  • 2a reduction in the efficiency of a muscle or organ after prolonged activity

Using fatigue: Examples

Take a moment to familiarize yourself with how "fatigue" can be used in various situations through the following examples!

  • Example

    The fatigue from the long hike was overwhelming.

  • Example

    She was suffering from chronic fatigue syndrome.

  • Example

    The metal fatigue caused the airplane to crash.

  • Example

    The soldiers were suffering from battle fatigue.

fatigue Synonyms and Antonyms

Antonyms for fatigue

Idioms Using fatigue

  • dead tired

    completely exhausted


    After working a double shift, I was dead tired.

  • to work extremely hard and become very tired


    She had been running herself ragged trying to finish the project on time.

  • to suddenly become too tired to continue doing something


    After running for two hours, I hit the wall and had to stop.

Phrases with fatigue

  • a psychological disorder caused by prolonged exposure to active warfare, also known as shell shock or post-traumatic stress disorder (PTSD)


    The soldiers were experiencing combat fatigue after months of fighting.

  • a crack in a material caused by repeated stress or strain


    The metal fatigue caused a fatigue crack in the airplane's wing.

  • a reduction in the ability of a muscle to generate force due to prolonged activity


    The athlete experienced muscle fatigue during the marathon.

Origins of fatigue

from French 'fatigue', from Latin 'fatigare', meaning 'to tire'


Summary: fatigue in Brief

The term 'fatigue' [fəˈtiːɡ] refers to extreme tiredness caused by physical or mental exertion or illness. It can also refer to a reduction in efficiency of a muscle or organ after prolonged activity, as in 'The metal fatigue caused the airplane to crash.' Phrases like 'combat fatigue' and idioms like 'run oneself ragged' denote exhaustion from specific contexts, while 'dead tired' and 'hit the wall' describe general states of extreme tiredness.

How do native speakers use this expression?