the act or process of exhausting.
the state of being exhausted.
extreme weakness or fatigue.
the total consumption of something: the exhaustion of your vacation benefits for the year.

Origin of exhaustion

First recorded in 1640–50, exhaustion is from the New Latin word exhaustiōn- (stem of exhaustiō). See exhaust, -ion
Related formspre·ex·haus·tion, noun

Synonyms for exhaustion

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for exhaustion

Contemporary Examples of exhaustion

Historical Examples of exhaustion

  • From the exhaustion that followed excess of feeling, she slept.

    Weighed and Wanting

    George MacDonald

  • Truly then his plea of exhaustion would not be without excuse!

    The Dramatic Values in Plautus

    Wilton Wallace Blancke

  • When at length he won to peace, after ten years, it was the peace of exhaustion.

  • No languor, no dull headache, no exhaustion, follows your experience.

    The Forest

    Stewart Edward White

  • Her look of weakness and exhaustion did indeed strike him painfully.

    The Coryston Family

    Mrs. Humphry Ward

British Dictionary definitions for exhaustion



extreme tiredness; fatigue
the condition of being used up; consumptionexhaustion of the earth's resources
the act of exhausting or the state of being exhausted
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for exhaustion

"fatigue," 1640s, noun of action from exhaust in sense of "drawing off" of strength.

Online Etymology Dictionary, © 2010 Douglas Harper

exhaustion in Medicine




The inability to respond to stimuli; extreme fatigue.
The act or an instance of using up a supply of something.
The extraction of the active constituents of a drug by treating with water, alcohol, or another solvent.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.