inexhaustible

1 of 2

adjective

in·​ex·​haust·​ible ˌi-nig-ˈzȯ-stə-bəl How to pronounce inexhaustible (audio)
Synonyms of inexhaustiblenext
: not exhaustible: such as
a
: incapable of being used up
inexhaustible riches
b
: incapable of being wearied or worn out
an inexhaustible hiker
inexhaustibility
ˌi-nig-ˌzȯ-stə-ˈbi-lə-tē How to pronounce inexhaustible (audio)
noun
inexhaustibleness
ˌi-nig-ˈzȯ-stə-bəl-nəs How to pronounce inexhaustible (audio)
noun
inexhaustibly
ˌi-nig-ˈzȯ-stə-blē How to pronounce inexhaustible (audio)
adverb

inexhaustibility

2 of 2

noun

in·​exhaustibility "+ How to pronounce inexhaustibility (audio)
: the quality or state of being inexhaustible : unfailingness

Synonyms of inexhaustible

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Adjective

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Examples of inexhaustible in a Sentence

Adjective The world's supply of oil is not inexhaustible. He seems to have inexhaustible energy.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
Text first, because there’s an inexhaustible lake of it online. — John Koetsier, Forbes.com, 4 June 2026 People of this era thought the supply of game in America was inexhaustible. — Literary Hub, 10 June 2026 But the collapse of North Atlantic cod remains a stark reminder that nothing is inexhaustible. — Encyclopedia Britannica, 30 June 2026 Pollution-free energy is defined as energy that is abundant, inexhaustible and has little impact on human health. — Krisztian Elcsics, Hartford Courant, 12 May 2026 See All Example Sentences for inexhaustible

Word History

First Known Use

Adjective

1601, in the meaning defined above

Time Traveler
The first known use of inexhaustible was in 1601

Rhymes for inexhaustible

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Browse Nearby Words

inexhaustibility
inexhaustible
inexhaustive
See all Nearby Words

Cite this Entry

“Inexhaustible.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inexhaustible. Accessed 8 Jul. 2026.

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Kids Definition

inexhaustible

adjective
in·​ex·​haust·​ible ˌin-ig-ˈzȯ-stə-bəl How to pronounce inexhaustible (audio)
1
: impossible to use up
an inexhaustible supply
2
: impossible to tire out
an inexhaustible worker
inexhaustibility
-ˌzȯ-stə-ˈbil-ət-ē How to pronounce inexhaustible (audio)
noun
inexhaustibly
-ˈzȯ-stə-blē How to pronounce inexhaustible (audio)
adverb

More from Merriam-Webster on inexhaustible

Nglish: Translation of inexhaustible for Spanish Speakers

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