[in-ig-zaws-tuh-buh l]


not exhaustible; incapable of being depleted: an inexhaustible supply.
untiring; tireless: an inexhaustible runner.

Origin of inexhaustible

1595–1605; < Latin inexhaust(us) not exhausted (see in-3, exhaust) + -ible
Related formsin·ex·haust·i·bil·i·ty, in·ex·haust·i·ble·ness, nounin·ex·haust·i·bly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for inexhaustible

Contemporary Examples of inexhaustible

Historical Examples of inexhaustible

  • Following in their footsteps is an inexhaustible efflorescence of prodigies.

    The Dream

    Emile Zola

  • Is there not also inexhaustible wealth in our southern provinces?

  • Here was evidently the source of the Kikuyu's inexhaustible corn supply.


    Theodor Hertzka

  • Their stringy muscles seemed founts of inexhaustible energy.

    White Fang

    Jack London

  • Our Father, in his inexhaustible clemency, heard their prayer.

British Dictionary definitions for inexhaustible



incapable of being used up; endlessinexhaustible patience
incapable or apparently incapable of becoming tired; tireless
Derived Formsinexhaustibility or inexhaustibleness, nouninexhaustibly, adverb
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 inexhaustible

c.1600, from in- (1) "not, opposite of" + exhaustible (see exhaust). Related: Inexhaustibly.

Online Etymology Dictionary, © 2010 Douglas Harper