tiredness

• "he was hospitalized for extreme fatigue"
• "growing fatigue was apparent from the decline in the execution of their athletic skills"
• "weariness overcame her after twelve hours and she fell asleep"

Synonyms

• fatiguelose interest or become bored with something or somebody; exhaust or get tired through overuse or great strain or stress; temporary loss of strength and energy resulting from hard physical or mental work; used of materials (especially metals) in a weakened state caused by long stress; (always used with a modifier) boredom resulting from overexposure to something; labor of a nonmilitary kind done by soldiers (cleaning or digging or draining or so on)
• wearinesstemporary loss of strength and energy resulting from hard physical or mental work