[in-ig-zaws-tuh-buh l]
See more synonyms for inexhaustible on
  1. not exhaustible; incapable of being depleted: an inexhaustible supply.
  2. 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. 2018

Examples from the Web for inexhaustibility

Historical Examples of inexhaustibility

  • Not the least of the Zoological Gardens' many attractions is their inexhaustibility.

  • Furthermore, at that period, a great deal of talk was believed as to the inexhaustibility of Michigan pine.

    The Blazed Trail

    Stewart Edward White

  • He felt a sense of reliance as upon an inexhaustibility of goodness in another soul.

    The Portion of Labor

    Mary E. Wilkins Freeman

British Dictionary definitions for inexhaustibility


  1. incapable of being used up; endlessinexhaustible patience
  2. 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 inexhaustibility



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

Online Etymology Dictionary, © 2010 Douglas Harper