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inexhaustible

American  
[in-ig-zaws-tuh-buhl] / ˌɪn ɪgˈzɔs tə bəl /

adjective

  1. not exhaustible; incapable of being depleted.

    an inexhaustible supply.

  2. untiring; tireless.

    an inexhaustible runner.


inexhaustible British  
/ ˌɪnɪɡˈzɔːstəbəl /

adjective

  1. incapable of being used up; endless

    inexhaustible patience

  2. incapable or apparently incapable of becoming tired; tireless

"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

Other Word Forms

  • inexhaustibility noun
  • inexhaustibleness noun
  • inexhaustibly adverb

Etymology

Origin of inexhaustible

1595–1605; < Latin inexhaust ( us ) not exhausted ( in- 3, exhaust ) + -ible

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Above us in the galaxy are inexhaustible resources and infinite living space.

From The Wall Street Journal

“Boss Lincoln” is emphatically not a political-science tract; Mr. Pinsker makes his points within a gripping chronological narrative that consistently animates Lincoln’s inexhaustible quest.

From The Wall Street Journal

She, however, accrued an inexhaustible supply of IOUs.

From Barron's

Few people were more agnostically alive than Stoppard, who loved the finer things in life and handsomely earned them with his inexhaustible wit.

From Los Angeles Times

It’s the seeing, varied and brightly inexhaustible, that makes Welty’s letters such a sustaining pleasure.

From The Wall Street Journal