in·con·ceiv·able | \ˌin-kən-ˈsē-və-bəl \

Definition of inconceivable 

: not conceivable: such as

a : impossible to comprehend

b : unbelievable

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Other Words from inconceivable

inconceivability \ˌin-kən-ˌsē-və-ˈbi-lə-tē \ noun
inconceivableness \ˌin-kən-ˈsē-və-bəl-nəs \ noun
inconceivably \ˌin-kən-ˈsē-və-blē \ 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

This past weekend, Tiger Woods’s return to golf was dissected in a way that would be inconceivable for, say, Phil Mickelson. Michael Rosenberg,, "Another Super Bowl Opening Night Featuring Tom Brady and the Patriots—What Else Is New?," 30 Jan. 2018 The summit was almost inconceivable a few months ago, after a year when the bordering countries seemed on the verge of war. Fox News, "Bolton says Kim must give up nuclear program before any summit with Trump," 29 Apr. 2018 Now, with Russia once again on the prowl, that alliance seems to be at risk in ways that were virtually inconceivable when Latvia joined in 2004. Marc Santora, New York Times, "Trump Derides NATO as ‘Obsolete.’ Baltic Nations See It Much Differently.," 10 July 2018 Whether the true likelihood is as high as one in two, or as inconceivable as one in a trillion trillion trillion, the mere ability to consciously ask ourselves that question depends on the fact that life has already successfully originated. Liv Boeree, Vox, "Why haven’t we found aliens yet?," 3 July 2018 As inconceivable as that might have seemed at times, the former Heisman Trophy-winning quarterback from UF has been selected to play in the Class AA Eastern League All-Star Game on July 11 in Trenton, N.J., it was announced Friday. Stephen Ruiz,, "Say this for Tim Tebow: He's an Eastern League all-star," 29 June 2018 Meanwhile, a quick scan of the top Hot 100 over the last 12 months reveals a disparate smorgasbord, much of it once inconceivable as chart hits. Dj Louie Xiv, Vanities, "Has 2018 Killed the Pop Star?," 22 June 2018 An Israel quietly cooperating with Saudi Arabia would have seemed inconceivable to the founders of a country that fought four wars with its neighbors in its first 25 years of existence. Matthew Campbell,, "Benjamin Netanyahu Could Be Heading for a Fifth Term. Or to Court," 14 June 2018 The mayor’s race centered around a vigorous battle over housing in the city, where buying a home is inconceivable for many and longtime residents are being squeezed out. Nitasha Tiku, WIRED, "How Tech Shaped San Francisco’s Unresolved Mayor’s Race," 11 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'inconceivable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of inconceivable

1624, in the meaning defined above

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Last Updated

27 Sep 2018

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Time Traveler for inconceivable

The first known use of inconceivable was in 1624

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More Definitions for inconceivable



English Language Learners Definition of inconceivable

: impossible to imagine or believe : not conceivable


in·con·ceiv·able | \ˌin-kən-ˈsē-və-bəl \

Kids Definition of inconceivable

: impossible to imagine or believe The fire caused inconceivable damage.

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Comments on inconceivable

What made you want to look up inconceivable? Please tell us where you read or heard it (including the quote, if possible).


evasion of direct action or statement

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