un·​fath·​om·​able | \ ˌən-ˈfa-t͟hə-mə-bəl How to pronounce unfathomable (audio) \

Definition of unfathomable

: not capable of being fathomed:
b : impossible to comprehend

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Other Words from unfathomable

unfathomably \ ˌən-​ˈfa-​t͟hə-​mə-​blē How to pronounce unfathomable (audio) \ adverb

Examples of unfathomable in a Sentence

His behavior is completely unfathomable. the unfathomable reaches of space
Recent Examples on the Web Devices can see inside the human body with a level of precision that seemed unfathomable just a few years ago. Brandon Allgood, STAT, "3 ways the life sciences industries can eliminate bias in AI," 17 Feb. 2021 Their ability to make order out of catastrophe, to bring shape to that which is unfathomable, serves as both motivation and solace. James Robins, The New Republic, "Can Historians Be Traumatized by History?," 16 Feb. 2021 Given the coronavirus's effects on the respiratory system, lighting up a cigarette this year may have seemed unfathomable to some, but sales indicate that the chemical incentive of nicotine remained a draw for many. NBC News, "Your brain on cortisol: Why overstressed gray matter is leading us astray in lockdown," 25 Dec. 2020 This unfathomable dimension may help to explain why there is no end to the pile of books about the Trump period. Washington Post, "Trump imagined himself a modern-day Midas. His touch was anything but golden.," 15 Jan. 2021 The growing ties, deemed unfathomable 15 years ago, have strengthened during the COVID-19 pandemic, as studios have increasingly relied on YouTube to lure younger audiences to new streaming platforms. Los Angeles Times, "YouTube has gone from Hollywood pariah to partner. Meet the executive who led the change," 4 Jan. 2021 And the gap between wealthy and ordinary people has become unfathomable. Scott Burns, Dallas News, "Scott Burns: It’s time to find our hearts," 18 Dec. 2020 Staying in a hotel was unfathomable, too, so Black players would often sleep in their cars or on the bus. Alexis Cubit, USA TODAY, "Godfrey recollects time as part of Negro Baseball League on 100th anniversary," 1 Jan. 2021 An unfathomable 330,000 Americans have died of COVID-19. Susan Page, USA Today, "Year of tumult in politics: 2020 changed the U.S., creating 'a big fork in the road' with challenges for Biden, Trump," 28 Dec. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unfathomable.' 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 unfathomable

1640, in the meaning defined above

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Time Traveler for unfathomable

Time Traveler

The first known use of unfathomable was in 1640

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Statistics for unfathomable

Last Updated

23 Feb 2021

Cite this Entry

“Unfathomable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unfathomable. Accessed 26 Feb. 2021.

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English Language Learners Definition of unfathomable

literary : impossible to understand

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