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

Keep scrolling for more

Other Words from unfathomable

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

Examples of unfathomable in a Sentence

His behavior is completely unfathomable. the unfathomable reaches of space
Recent Examples on the Web Kingdom Comeback: The Chiefs’ Seven-Year Journey to a Super Bowl Title (Sports Illustrated) The coach arrived in Kansas City grieving the death of a son, tasked with saving a franchise in unfathomable crisis. Adam Lashinsky, Fortune, "Uber still isn’t a business built to last," 7 Feb. 2020 For many of us, that was always the unfathomable aspect of the Kobe Bryant saga. Bob Ryan, BostonGlobe.com, "Kobe Bryant was an original; there really wasn’t anyone like him," 29 Jan. 2020 Likewise, to believe that a storm or flood or other disaster was the work of the gods can help give meaning to an otherwise unfathomable tragedy, and allow people the opportunity to plead for relief. Popular Science, "Real-life climate disasters are mirroring doomsday myths—and that’s worse than you think," 23 Jan. 2020 The Clippers registered a nearly unfathomable 20 dunks. Jeff Mcdonald, ExpressNews.com, "Kawhi Leonard beats San Antonio Spurs at AT&T Center for first time," 21 Dec. 2019 His defenders say his unfathomable stretch in ICE detention amounted to a violation of his human rights. USA Today, "Deaths in custody. Sexual violence. Hunger strikes. What we uncovered inside ICE facilities across the US," 20 Dec. 2019 Piles of plastic blanket the landscape, stretching unfathomable distances. Zoë Schlanger, Quartz, "A documentary that will never let you see plastic the same way again," 12 Dec. 2019 Our bodies have endured unfathomable feats that our minds barely have time to comprehend what has actually happened. Jasmine Gomez, Seventeen, "Sarah Hyland Posted a Photo She "Hated" To Inspire Body Positivity," 26 Nov. 2019 Our bodies have endured unfathomable feats that our minds barely have time to comprehend what has actually happened. Christina Oehler, Health.com, "Sarah Hyland Sends Body Positive Message to ‘Fellow Invisible Illness Warriors’," 25 Nov. 2019

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.

See More

First Known Use of unfathomable

1640, in the meaning defined above

Keep scrolling for more

Learn More about unfathomable

Time Traveler for unfathomable

Time Traveler

The first known use of unfathomable was in 1640

See more words from the same year

Statistics for unfathomable

Last Updated

17 Feb 2020

Cite this Entry

“Unfathomable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unfathomable. Accessed 19 Feb. 2020.

Keep scrolling for more

More Definitions for unfathomable


How to pronounce unfathomable (audio)

English Language Learners Definition of unfathomable

literary : impossible to understand

Keep scrolling for more

Comments on unfathomable

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


See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

More Confusing Words—Quiz

  • cats on impossible timber
  • The magician ______ moved the selected card to the top of the deck.
Spell It

Can you spell these 10 commonly misspelled words?


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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