un·fath·om·able | \ˌən-ˈfa-t͟hə-mə-bəl \

Definition of unfathomable 

: not capable of being fathomed:

a : immeasurable

b : impossible to comprehend

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Other Words from unfathomable

unfathomably \ˌən-ˈfa-t͟hə-mə-blē \ adverb

Examples of unfathomable in a Sentence

His behavior is completely unfathomable. the unfathomable reaches of space

Recent Examples on the Web

This was a strikingly notable incident of a bright player foreseeing a seemingly unfathomable situation, and executing the actions to put him into it. SI.com, "Kylian Mbappé's Announces Himself on the World Stage as Cristiano Ronaldo & Lionel Messi Bow Out," 2 July 2018 Or, worse, elicit a seemingly unfathomable, knee-jerk hatred. Stefan Stevenson, star-telegram, "The best viral high school baseball video brings out worst in Internet," 12 June 2018 On the perimeter, sharpshooters Danielle Kunk and Caitlin McEldowney combined for eight 3-pointers as Versailles went on an unfathomable 49-6 run to ignite the running clock going into the final stanza. Shelby Dermer, Cincinnati.com, "Summit Country Day, Williamsburg fall in regional semifinals," 7 Mar. 2018 What Arteaga went through seems unfathomable—after suffering the loss of a wanted child, being unable to decide how your body recovers is unnecessary additional pain. Cady Drell, Marie Claire, "How a Walgreens Pharmacist (Legally) Refused to Give This Woman a Doctor-Prescribed Abortion Pill," 25 June 2018 To everyone else, those fifteen digits are totally unfathomable, written in an uncrackable code. Kyle Mizokami, Popular Mechanics, "All About Those Weird “Numbers” Stations Used to Talk to Spies," 30 May 2018 How exactly the dominoes fall at that position could set the rest of the first round into motion. 1. Browns — Josh Allen, QB, Wyoming: Taking the strong-armed Allen seemed almost unfathomable even just a few weeks ago. Michael Middlehurst-schwartz, USA TODAY, "NFL mock draft 2018: Josh Allen, Baker Mayfield could be biggest QB dominoes," 16 Apr. 2018 Roger Clemens and Pedro Martinez seemed like giants among boys, their ability to neutralize opposing bats almost unfathomable. Alex Speier, BostonGlobe.com, "What’s up with all the strikeouts in Major League Baseball?," 12 July 2018 This is a moral failure on a scale that would have been unfathomable just a few years ago. Senator Tammy Duckworth, Marie Claire, "Senator Tammy Duckworth on Why the Children Separated at the Border Still Need You," 2 July 2018

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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Statistics for unfathomable

Last Updated

1 Sep 2018

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Time Traveler for unfathomable

The first known use of unfathomable was in 1640

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English Language Learners Definition of unfathomable

: impossible to understand

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