inconceivable

adjective

in·​con·​ceiv·​able ˌin-kən-ˈsē-və-bəl How to pronounce inconceivable (audio)
: not conceivable: such as
b
: 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
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.
Naturally, cultivating enough soy and corn to feed billions upon billions of chickens demands an inconceivable amount of land, water and fossil fuels. Scott Travers, Forbes.com, 7 Sep. 2025 In past discussions, Asimov had employed the apt analogy of examining the elemental motion of gasses, where movements of each individual molecule is nearly impossible to predict, but taken as a whole its progressions and paths can be charted out across inconceivable oceans of time. Jeff Spry, Space.com, 29 Aug. 2025 Attacking this season without another striker arriving feels inconceivable, though obtaining him is proving anything but straightforward. Chris Waugh, New York Times, 27 Aug. 2025 Koppel envisions a map of two millennia of commentary, searchable by novice and scholar alike, a democratization of Torah study inconceivable a decade ago. Kaif Shaikh, Interesting Engineering, 15 Aug. 2025 See All Example Sentences for inconceivable

Word History

First Known Use

1624, in the meaning defined above

Time Traveler
The first known use of inconceivable was in 1624

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Cite this Entry

“Inconceivable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inconceivable. Accessed 9 Sep. 2025.

Kids Definition

inconceivable

adjective
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

Last Updated: - Updated example sentences
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