unfathomable

adjective

ˌən-ˈfa-t͟hə-mə-bəl How to pronounce unfathomable (audio)
Definition of unfathomablenext
1
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
2
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 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 Expectations for a deal that establishes guardrails on AI are low on both sides, which continue to drive a headlong race toward potentially unfathomable intelligence capabilities. — Los Angeles Times, 17 Sep. 2026 Even for outdoor enthusiasts, the magnitude of destruction wrought by nature’s fury seemed unfathomable. — Holly Yan, CNN Money, 1 Sep. 2026 See All Example Sentences for unfathomable
Recent Examples of Synonyms for unfathomable
  1. infinite
  2. incomprehensible
  3. endless
  4. mysterious
  5. uncanny
  6. unintelligible
  7. confusing
  8. esoteric
Adjective
  • To find the proof for zeta(3), Apéry sandwiched the function between two infinite series that converged at just the right speed to ensure zeta(3) must be irrational.
    — Lyndie Chiou, Scientific American, 2 Oct. 2026
  • In truth, as God’s children the drivers were expressing infinite and omnipresent Mind.
    — The Christian Science Monitor, Christian Science Monitor, 1 Oct. 2026
Definition of infinite
Adjective
  • Painfully aware of this, Shawn waited for one of the drunk old men to comment, heckle, make one of those incomprehensible jokes that drew rude laughter from adults.
    — Rachel Heng, New Yorker, 4 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
  • The resort lends itself to rest and relaxation, but teenagers could certainly keep themselves busy with the endless activities on offer.
    — Condé Nast, Condé Nast Traveler, 6 Oct. 2026
  • And Amazon Prime Big Deal Days offers seemingly endless options to choose from, including some of our top picks below.
    — ABC News, ABC News, 6 Oct. 2026
Definition of endless
Adjective
  • Yeoh plays Olwen, a replicant Blade Runner nearing the end of her life, who partners with Schafer’s Cora, a mysterious new recruit.
    — Naman Ramachandran, Variety, 7 Oct. 2026
  • New research suggests the ‘world’s most mysterious manuscript,’ of unknown provenance, made in the Middle Ages (1404–38), is being read all wrong, reports The Guardian.
    — Devorah Lauter, ARTnews.com, 6 Oct. 2026
Definition of mysterious
Adjective
  • Books that get called weird girl lit tend to deal in uncanny or dreamlike circumstances.
    — Abby McCarter, New York Times, 2 Oct. 2026
  • Phoebe Bridgers, in her first film role, pulls off an uncanny transformation as a decoy who bends lines of age and gender.
    — Joe Reid, Vulture, 25 Sep. 2026
Definition of uncanny
Adjective
  • Then Mikayla makes an almost unintelligible crack about Doug, which sends Taylor back into a rage spiral.
    — Kathleen Walsh, Vulture, 11 Sep. 2026
  • Assuming viewers understood the history of English soccer — or even the offside rule — could make the broadcasts unintelligible for new fans who understood neither.
    — Los Angeles Times, Los Angeles Times, 1 Sep. 2026
Definition of unintelligible
Adjective
  • Letting go of genre might sound confusing when the album’s named Popstar, but to Tinashe, a pop star is so much more than a genre label.
    — Nicole Fell, HollywoodReporter, 2 Oct. 2026
  • In recent years, homeowners, developers and businesses have complained that navigating the Planning Department can be complicating and confusing.
    — Jack Flemming, Los Angeles Times, 1 Oct. 2026
Definition of confusing
Adjective
  • But then Mehmet is let go from his job teaching esoteric music practices to university students and the household’s sole steady source of income is gone.
    — Jessica Kiang, Variety, 30 Sep. 2026
  • Some say the public backlash to AI, and OpenAI, is partly because messaging from the leading labs can be esoteric, rather than grounded in the day-to-day benefits of AI, and in some cases, downright frightening.
    — Emily Forlini, Fortune, 23 Sep. 2026
Definition of esoteric

Browse Nearby Words

unfathered
unfathomable
unfavorable
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Cite this Entry

“Unfathomable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfathomable. Accessed 9 Oct. 2026.

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