verb (used with object)

verb (used without object)

to pass out or escape, as spent steam from the cylinder of an engine.

noun Machinery.

Origin of exhaust

1515–25; 1895–1900 for def 11; < Latin exhaustus emptied out, drained out, past participle of exhaurīre
Related formsex·haust·er, nounex·haust·i·ble, adjectiveex·haust·i·bil·i·ty, nounmul·ti·ex·haust, nounnon·ex·haust·ed, adjectivenon·ex·haust·i·ble, adjectivepre·ex·haust, verb (used with object)un·ex·haust·ed, adjectiveun·ex·haust·ed·ly, adverb

Synonyms for exhaust

Antonyms for exhaust

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

Examples from the Web for exhausted

Contemporary Examples of exhausted

Historical Examples of exhausted

  • Exhausted in mind and body, she could not long endure this tide of recollection.


    Lydia Maria Child

  • We have endured much from them, and I must say that my patience is exhausted.

  • She did not weep: long ago she had exhausted the relief of tears.

    Within the Law

    Marvin Dana

  • But Mr. Thomson's contributions may fairly be said to have exhausted the "romance" of the road.

  • But Fortune had not yet exhausted her malice against the hapless Athenians.

British Dictionary definitions for exhausted


verb (mainly tr)

to drain the energy of; tire outto exhaust someone by constant questioning
to deprive of resources, etca nation exhausted by war
to deplete totally; expend; consumeto exhaust food supplies
to empty (a container) by drawing off or pumping out (the contents)
to develop or discuss thoroughly so that no further interest remainsto exhaust a topic of conversation
to remove gas from (a vessel, etc) in order to reduce the pressure or create a vacuum; evacuate
to remove or use up the active ingredients from (a drug, solution, etc)
to destroy the fertility of (soil) by excessive cultivation
(intr) (of steam or other gases) to be emitted or to escape from an engine after being expanded


gases ejected from an engine as waste products
  1. the expulsion of expanded gas or steam from an engine
  2. (as modifier)exhaust stroke
  1. the parts of an engine through which the exhausted gases or steam pass
  2. (as modifier)exhaust valve; exhaust pipe
Derived Formsexhausted, adjectiveexhauster, nounexhaustible, adjectiveexhaustibility, nounexhausting, adjective

Word Origin for exhaust

C16: from Latin exhaustus made empty, from exhaurīre to draw out, from haurīre to draw, drain
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 exhausted

mid-17c., "consumed, used up;" of persons, "tired out," past participle adjective from exhaust (v.). Related: Exhaustedly.



1530s, "to draw off or out, to use up completely," from Latin exhaustus, past participle of exhaurire "draw off, take away, use up," from ex- "off" (see ex-) + haurire "to draw up" (as water), from PIE *aus- "to draw water." Of resources, etc., from 1630s. Related: Exhausted; exhausting.



"waste gas," 1848, originally from steam engines, from exhaust (v.). In reference to internal combustion engines by 1896.

Online Etymology Dictionary, © 2010 Douglas Harper