Definition of fatigue

• used of materials (especially metals) in a weakened state caused by long stress; "metal fatigue"
• (always used with a modifier) boredom resulting from overexposure to something; "he was suffering from museum fatigue"; "after watching TV with her husband she had a bad case of football fatigue"; "the American public is experiencing scandal fatigue"; "political fatigue"
• labor of a nonmilitary kind done by soldiers (cleaning or digging or draining or so on); "the soldiers were put on fatigue to teach them a lesson"; "they were assigned to kitchen fatigues"