UNTHINKABLE Synonyms: 66 Similar and Opposite Words

unthinkable

adjective

ˌən-ˈthiŋ-kə-bəl

Definition of unthinkable

as in incredible

too extraordinary or improbable to believe to most people it seemed unthinkable that such a gentle man could be guilty of such awful crimes

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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 unthinkable Many Democratic leaders predict that the House majority is all but theirs, and that the Senate majority, almost unthinkable a year ago, is nearly in their grasp as well. — ABC News, 30 Sep. 2026 Micron is generating margins that would have been almost unthinkable in previous memory cycles, while the stock still trades at one of the lowest earnings multiples in the S & P 500 . — Isabella Gao, CNBC, 29 Sep. 2026 That would be impractical in Soho and unthinkable in Times Square. — Adriane Quinlan, Curbed, 29 Sep. 2026 Japan, a country constitutionally bound to pacifism since World War II, is investing in its defense and contributing to regional security in ways that were previously unthinkable. — David Sacks, Foreign Affairs, 28 Sep. 2026 See All Example Sentences for unthinkable

Recent Examples of Synonyms for unthinkable

Adjective

It’s crafted by these incredible artists and craftsmen who build the world with their own hands.

— Damon Wise, Deadline, 10 Oct. 2026
Ditka died Friday at age 86, and Detroit Lions head coach Dan Campbell and Los Angeles Chargers head coach Jim Harbaugh both recalled incredible stories about the Chicago Bears legend.

— Ryan Canfield OutKick, FOXNews.com, 10 Oct. 2026

Definition of incredible

Adjective

Rain rates are probably going to be a quarter of an inch per hour or less, making debris flow and landslides unlikely.

— Hannah Fry, Los Angeles Times, 10 Oct. 2026
The Times’ belated discovery of Bragg’s malpractice emerged through an unlikely incident that has not been reported in full.

— Charles Bethea, New Yorker, 9 Oct. 2026

Definition of unlikely

Adjective

The title comes from a phrase that became part of his creative vocabulary and began appearing in sketches whenever an absurd situation called for a perfectly incredulous response.

— Preezy Brown, VIBE.com, 6 Oct. 2026
Girot’s son-in-law, a physician, was incredulous and ordered him to see his primary-care doctor.

— Tim Graham, New York Times, 1 Oct. 2026

Definition of incredulous

Adjective

The technique has revolutionized neuroscience by opening up the brain's activity to scientists in ways previously impossible.

— Jackie Flynn Mogensen, Scientific American, 5 Oct. 2026
These Chargers have 13 games left, and identifying potential wins on the remaining schedule is a nearly impossible task.

— Los Angeles Times, Los Angeles Times, 5 Oct. 2026

Definition of impossible

Adjective

Technology, public taste and economic conditions all contributed to its once-inconceivable drastic makeover.

— Rick Nicita, HollywoodReporter, 30 Sep. 2026
The agent claims to have personally witnessed Foster training for the role at an FBI fingerprinting lab, a coincidence that feels both inconceivable and difficult to invalidate beyond any shadow of a doubt.

— Alex Greenberger, ARTnews.com, 18 Sep. 2026

Definition of inconceivable

Adjective

Independent businesses that once depended on customers walking through their doors gained the opportunity to reach shoppers anywhere, competing with national chains in ways that would have been unimaginable before.

— Dax Dasilva, Fortune, 2 Oct. 2026
Yet somehow, Eric Greenspan has achieved the unimaginable at Mish Delicatessen.

— Jenn Harris, Los Angeles Times, 1 Oct. 2026

Definition of unimaginable

Adjective

So to be able to sort of sit at her feet and just listen to her life was an unbelievable gift.

— Jem Aswad, Variety, 9 Oct. 2026
The final home game on the Capitals' regular season schedule this season is a matchup against the Penguins, which could set up an unbelievable scene with Ovechkin and Sidney Crosby battling things out at least one more time.

— Mark Harris OutKick, FOXNews.com, 5 Oct. 2026

Definition of unbelievable

Browse Nearby Words

untethers

unthinkable

unthinkably

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“Unthinkable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unthinkable. Accessed 11 Oct. 2026.

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Synonyms of unthinkable

adjective

Example Sentences

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