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.
Beyond mere efficiency gains, AI possesses the transformative potential to reconfigure entire business models through the creation of products and services previously inconceivable with conventional AI approaches. Indivar Nayyar, Forbes.com, 6 June 2025 What soon followed was likely inconceivable to most — even seasoned cyber mavens. Noah Barsky, Forbes, 24 Mar. 2025 Feats that were once inconceivable are now entirely feasible. Tori Latham, Robb Report, 26 Apr. 2025 In terms of achievements that were once equally preposterous and inconceivable 30 years ago, TCU reaching the Sweet 16 in women’s basketball is on the same level as the school making the national title game in football. Mac Engel, Fort Worth Star-Telegram, 25 Mar. 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

Browse Nearby Words

Cite this Entry

“Inconceivable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inconceivable. Accessed 18 Jun. 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
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!