in·​con·​ceiv·​able ˌin-kən-ˈsē-və-bəl How to pronounce inconceivable (audio)
: not conceivable: such as
: impossible to comprehend
inconceivability noun
inconceivableness noun
inconceivably adverb

Examples of inconceivable in a Sentence

The fire caused an inconceivable amount of damage. After coming this far, to quit now would be inconceivable.
Recent Examples on the Web But even the lowest estimates would have been inconceivable in the giddy aftermath of Neil Armstrong’s one small step. Bill Weir, CNN, 21 Feb. 2024 As for where the satellite might impact over the planet, its path according to Aerospace takes it over much of Earth’s surface at one moment or another, meaning no regions are really inconceivable. Eric MacK, Forbes, 19 Feb. 2024 Over the course of the twentieth century, as child mortality rates plummeted in much of the world, the loss of a child receded, for many people, from a seemingly unavoidable tragedy to an event practically inconceivable in its horror. Matthew Aucoin, The New York Review of Books, 15 Feb. 2024 Her death was permanent, an inconceivable notion when video games were known for giving characters extra lives. Zachary Small, New York Times, 12 Feb. 2024 The scenario was inconceivable just five weeks ago. Dan Gelston, USA TODAY, 2 Jan. 2024 Without that deleterious influence, phony bipartisanship would seem inconceivable. Armond White, National Review, 7 Feb. 2024 These image-generation systems just seemed like that was mechanized and weaponized on an inconceivable scale. Matteo Wong, The Atlantic, 6 Feb. 2024 For the uninitiated, mourning the passing of the Harrington may seem as inconceivable as, say, tearing up over the closing of a Motel 6. Paul Schwartzman, Washington Post, 11 Dec. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'inconceivable.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1624, in the meaning defined above

Time Traveler
The first known use of inconceivable was in 1624

Dictionary Entries Near inconceivable

Cite this Entry

“Inconceivable.” Dictionary, Merriam-Webster, Accessed 3 Mar. 2024.

Kids Definition


in·​con·​ceiv·​able ˌin-kən-ˈsē-və-bəl How to pronounce inconceivable (audio)
: impossible to imagine or believe
inconceivably adverb

More from Merriam-Webster on inconceivable

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