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 With an unfathomable sense of awareness in everything from feel on the field to relationships, part of what makes him as special off the field as on. — Kansas City Star, 9 Oct. 2026 That might seem almost unfathomable to anyone familiar with the last few years of FSU football, but there's still the lingering questions of Norvell's buyout now coupled with a new AD trying to get his footing in an absolute mess of a situation. — Austin Perry Outkick, FOXNews.com, 29 Sep. 2026 Hasan deftly handles political seriousness and an unfathomable history and present of war and punitive state violence against Palestinians. — Matthew Carey, Deadline, 21 Sep. 2026 Dolphins fandom has been a miserable existence for more than a quarter century now, and for reasons that extend well beyond the unfathomable 25-year playoff victory drought in a league that prioritizes parity. — Barry Jackson, Miami Herald, 20 Sep. 2026 See All Example Sentences for unfathomable

Recent Examples of Synonyms for unfathomable

Adjective

If Fielder is again playing a version of himself here, Holmes seems to be offering near infinite versions of herself up for examination, like a set of unblinking reflections in a hall of funhouse mirrors.

— David Mack, CNN Money, 16 Oct. 2026
More emails, more notifications, more infinite feeds — the steady drip of data spells doom for the overstimulated American.

— Adam Clark Estes, Vox, 16 Oct. 2026

Definition of infinite

Adjective

Stanton’s confession ends up being incomprehensible to anyone but himself—an irony that McCarthy, with his partiality for secret codes, seems to take great pleasure in.

— Max Callimanopulos, New Yorker, 14 Oct. 2026
Sure, the story is incomprehensible, and Dylan is far from a great actor.

— Andy Greene, Rolling Stone, 3 Oct. 2026

Definition of incomprehensible

Adjective

What to do nearby The possibilities (and activities) are endless.

— Condé Nast, Condé Nast Traveler, 13 Oct. 2026
Residents enjoy a Jack Nicklaus Signature 18-hole golf course, miles of hiking and biking trails, tennis and pickleball courts, and endless opportunities on Lake Keowee, including boating, swimming, or simply quiet moments on the water.

— Robb Report Studio, Robb Report, 12 Oct. 2026

Definition of endless

Adjective

Someone who has regarded filmmaking as a mysterious occupation might begin to see a way into it.

— Philip Martin, Arkansas Online, 13 Oct. 2026
But despite these regular airings, the origin of the mysterious Jardine Star Brooch has remained tantalizingly unexplained for decades.

— Eva Wolchover, Vanity Fair, 13 Oct. 2026

Definition of mysterious

Adjective

Superposition is an uncanny aspect of quantum mechanics that allows particles to be in multiple states at once—such as literally here and there simultaneously.

— Philipp Strasberg, Scientific American, 20 Oct. 2026
Cops released surveillance photos of the shooter, whose getup bore an uncanny resemblance to the Marvel character Deadpool.

— Julian Roberts-Grmela, New York Daily News, 17 Oct. 2026

Definition of uncanny

Adjective

Painter expressed concern that paper trail may one day become unintelligible if AI models begin using their own language to track their steps.

— Lisa Eadicicco, CNN Money, 16 Oct. 2026
While the audio recordings are mostly unintelligible to human ears, Energize Lab isn’t supposed to be storing any audio at all.

— Sean Hollister, The Verge, 15 Oct. 2026

Definition of unintelligible

Adjective

Colette, our winsome young narrator played by Sophia Anne Caruso, will soon go on to provide a bit of explanation that only makes things more confusing.

— Jackson McHenry, Vulture, 16 Oct. 2026
Here are the top 6 confusing things about El Niño, as relayed to CNN via meteorologists and climate scientists.

— Andrew Freedman, CNN Money, 14 Oct. 2026

Definition of confusing

Adjective

There’s as much effort gone into the food as there is the drinks menu, and the esoteric array of tropical flavors straddles both impressively.

— Condé Nast, Condé Nast Traveler, 13 Oct. 2026
Created in the 17th century, Japan’s Fujiko faith fuses Shinto and esoteric Buddhism in its reverence for Mount Fuji, the country’s highest peak.

— The Week UK, TheWeek, 11 Oct. 2026

Definition of esoteric

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unfathered

unfathomable

unfavorable

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“Unfathomable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfathomable. Accessed 21 Oct. 2026.

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Synonyms of unfathomable

adjective

Example Sentences

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