UNFATHOMABLE Synonyms: 99 Similar and Opposite Words

unfathomable

adjective

ˌən-ˈfa-t͟hə-mə-bəl

Definition of unfathomable

as in infinite

being or seeming to be without limits the unfathomable reaches of space

Synonyms & Similar Words

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Antonyms & Near Antonyms

as in incomprehensible

impossible to understand for some unfathomable reason the family decided to venture out into the blizzard

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

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.

Recent Examples of unfathomable Peart was a one-of-a-kind virtuoso, one of the greatest drummers rock ever knew, his monstrously complex parts so intrinsic to Rush’s sound that the idea of replacing him long seemed unfathomable. — Brian Hiatt, Rolling Stone, 14 Aug. 2026 Some people get excited about the idea of building product scaffolding at unfathomable scale. — Reed Albergotti, semafor.com, 7 Aug. 2026 Even for those of us who, for some unfathomable reason are not fascinated by high fashion history, this is an incredibly entertaining watch. — Rachel Elspeth Gross, Forbes.com, 7 Aug. 2026 The unfathomable crime is made even worse because Horner worked for years as a choral teacher in an Oceanside elementary school, Donnelly said. — Carolyn Gusoff, CBS News, 29 July 2026 See All Example Sentences for unfathomable

Recent Examples of Synonyms for unfathomable

Adjective

Then, in a famous 1937 paper, the mathematician Alan Turing devised a model based on hypothetical machines that could read and write symbols printed on an infinite tape according to a set of simple rules.

— Ben Brubaker, Quanta Magazine, 28 Aug. 2026
In a world of infinite access, experience becomes the scarcity.

— Jesse Kirshbaum, SPIN, 28 Aug. 2026

Definition of infinite

Adjective

War of the Worlds fuses post-9/11 paranoia and the terror of parenting to create one of Spielberg’s most thrilling blockbusters with a dark, genuinely scary atmosphere of ordinary people being wiped out by incomprehensible tragedy.

— Wesley Stenzel, Entertainment Weekly, 21 Aug. 2026
Farnaby’s character, a thickly-accented and mostly-incomprehensible farmer, was, of course, called Barry.

— Alex Ritman, Variety, 7 Aug. 2026

Definition of incomprehensible

Adjective

Britton was just one in an endless outpouring of grief over Parton’s death, as her costars, contemporaries, and friends all remembered the country legend.

— Kathleen Perricone, Entertainment Weekly, 26 Aug. 2026
Chains like Swig pioneered the model in the early 2010s, building menus around endless flavor combinations and signature creamy add-ins.

— Hanna Wickes, Sacbee.com, 25 Aug. 2026

Definition of endless

Adjective

These particles efficiently scatter the blue and green light while letting red and orange wavelengths pass through, creating the uncanny feeling of an all-day sunset.

— Michael A. Robinson, The Conversation, 25 Aug. 2026
The skyline floated like an uncanny but beautiful projection off to our side.

— Vinson Cunningham, New Yorker, 23 Aug. 2026

Definition of uncanny

Adjective

Incomplete, corrupted, untimely, or unintelligible Submissions or Submission Forms will be disqualified.

— August 16, NPR, 16 Aug. 2026
When the surveillance footage resumes about an hour later, a man can be heard shouting, but the words are unintelligible, and a vehicle horn sounds.

— Kansas City Star, Kansas City Star, 10 Aug. 2026

Definition of unintelligible

Adjective

Rich Dad, Poor Dad is a hodgepodge of financial advice and confusing diagrams held together by anecdotes from Kiyosaki’s childhood.

— Christopher Cox, Vanity Fair, 26 Aug. 2026
Disability rights advocates fear the changes to special education oversight weaken the federal safety net for autistic students and others with disabilities, making these systems more confusing when families need help enforcing students’ rights.

— Claire Sibonney, Miami Herald, 26 Aug. 2026

Definition of confusing

Adjective

Baseball is a sport that thrives on statistics, no matter how esoteric, but there appears to be no record of a professional baseball player previously wearing a mechanical watch during a game.

— Anthony DeMarco, Forbes.com, 22 Aug. 2026
The rereleased games are fascinatingly esoteric, too, including the GBC versions of Croc, Croc 2, Earthworm Jim, and the Japan-only GB shmup, Chikyu Kaiho Gun Zas.

— Will Greenwald, PC Magazine, 22 Aug. 2026

Definition of esoteric

Browse Nearby Words

unfathered

unfathomable

unfavorable

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“Unfathomable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfathomable. Accessed 1 Sep. 2026.

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Synonyms of unfathomable

adjective

Example Sentences

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