inconceivable
Americanadjective
Other Word Forms
Etymology
Origin of inconceivable
First recorded in 1625–35; in- 3 + conceivable
Explanation
If something is inconceivable, it doesn’t seem possible, it’s hard to imagine, or it can’t be true. It might seem inconceivable that a society would choose to pay bankers more than teachers, but it’s true. When an idea or event is inconceivable, it's so outlandish, amazing, or horrible that it’s hard to believe. The horrible acts committed by the Nazis during the Holocaust are inconceivable on many levels, yet we know they occurred. Some things are inconceivable because they really wouldn't happen — for example, it's inconceivable that you would actually eat your hat.
Vocabulary lists containing inconceivable
The Diary of Anne Frank
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Essential Academic Vocabulary for High School Students, List 2
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List 3
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Mike McPhaden, a senior scientist at NOAA's Pacific Marine Environmental Laboratory, had a similar estimate, telling AFP: "It's not inconceivable that 2027 may top out at 1.7C above preindustrial levels" if model forecasts bear out.
From Barron's ● Aug. 20, 2026
A trillion is a number so large it stops being a number and becomes an abstraction, something inconceivable.
From Salon ● Jun. 20, 2026
Looking back, it seems inconceivable he didn't play in the first Ashes Test in Perth, when England went with five fast bowlers.
From BBC ● Jun. 2, 2026
Positions they hold tomorrow may be inconceivable today.
From The Wall Street Journal ● May 28, 2026
Fischer finds it inconceivable that Dawes could have ridden all seventeen miles to Lexington and not spoken to anyone along the way.
From "The Tipping Point" by Malcolm Gladwell
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
