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.
Given that the family has acknowledged trying for decades to plant the Trump flag in the Gulf, these mega-deals are inconceivable without Trump’s Presidency. David D. Kirkpatrick, New Yorker, 11 Aug. 2025 That’s not an inconceivable outcome, even with this interest from Newcastle. Sebastian Stafford-Bloor, New York Times, 25 July 2025 Metrics determine our life and work in ways that were inconceivable ten or 15 years ago. Bilge Ebiri, Vulture, 28 July 2025 These are monumental achievements, inconceivable in the past, that will allow the state to navigate the swings and roundabouts a deluded Congress imposes on us. Kevin Rennie, Hartford Courant, 5 July 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 20 Aug. 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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