American English

Definition of fatigue noun from the Oxford Advanced American Dictionary



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  1. 1[uncountable] a feeling of being extremely tired, usually because of hard work or exercise synonym exhaustion physical and mental fatigue Driver fatigue was to blame for the accident. I was heavy with fatigue and could not keep my eyes open.
  2. 2[uncountable] (usually after another noun) a feeling of not wanting to do a particular activity any longer because you have done too much of it battle fatigue compassion fatigue (= the inability to feel pity for other people's suffering any more) brought on by too many fundraisers
  3. 3[uncountable] weakness in metal or wood caused by repeated bending or stretching The wing of the plane showed signs of metal fatigue.
  4. 4fatigues [plural] loose clothes worn by soldiers
  5. 5(also fatigue detail) [uncountable] duties, such as cleaning and cooking, that soldiers have to do, especially as a punishment We were all put on fatigue detail for a week.
See the Oxford Advanced Learner's Dictionary entry: fatigue