Exhaustion is a state of being incredibly tired. Running a marathon on a hot day often results in exhaustion.

Your exhaustion might be due to physical fatigue, after shoveling snow for hours or chasing after your runaway dog, or mental tiredness. A terrible argument with your best friend can lead to exhaustion, for example. Another kind of exhaustion is caused by illness or general weakness. Exhaustion comes from the verb exhaust, "a drawing off," specifically of strength. from the Latin exhaurire, "draw off" or "take away."

Definitions of exhaustion
  1. noun
    extreme fatigue
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    exhaustion resulting from lack of food
    a state of extreme exhaustion
    brain-fag, mental exhaustion
    exhaustion that affects mental keenness
    type of:
    fatigue, tiredness, weariness
    temporary loss of strength and energy resulting from hard physical or mental work
  2. noun
    the act of exhausting something entirely
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    type of:
    the act of decreasing something markedly
  3. noun
    serious weakening and loss of energy
    synonyms: debilitation, enervation, enfeeblement
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    type of:
    becoming weaker
Word Family