inconceivable; unimaginable: the unthinkable size of the universe.
not to be considered; out of the question: Such a suggestion is unthinkable.
something that cannot be conceived or imagined, as something too unusual, vague, or disagreeable: Today's unthinkables are tomorrow's realities.
- un·think·a·bil·i·ty, un·think·a·ble·ness, noun
- un·think·a·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use unthinkable in a sentence
VOSD’s MacKenzie Elmer reports in a new story on the agency’s latest push for an idea that has long been considered unthinkable.Morning Report: City Stops Paying Rent on 101 Ash St. | Voice of San Diego | September 2, 2020 | Voice of San Diego
It could be the most expensive public works project in San Diego’s 170-year history and the idea has been discussed for decades but was long written off as unthinkable.The Water Authority Is Resurrecting Its Pipe Dream – Again | MacKenzie Elmer | September 1, 2020 | Voice of San Diego
A few years ago, BP’s plan to pivot away from oil would been unthinkable.BP said it will cut oil production 40% and the stock market didn’t blink | Michael J. Coren | August 5, 2020 | Quartz
Graphics by Anna WiederkehrAmericans have changed their behavior in ways that would have been unthinkable even a few months ago.Republicans And Democrats See COVID-19 Very Differently. Is That Making People Sick? | Amelia Thomson-DeVeaux | July 23, 2020 | FiveThirtyEight
We need to get money into people’s hands immediately to prevent the unthinkable from happening right here in the United States.
It is, Zelden said, “unthinkable” that Scalise would harbor these views.No. 3 Republican Admits Talking to White Supremacist Conference | Tim Mak | December 30, 2014 | THE DAILY BEAST
You even went out and bought the fabric for your own Oscar dress, which would be unthinkable for an actress to do today.All Eyes on Anjelica Huston: The Legendary Actress on Love, Abuse, and Jack Nicholson | Alex Suskind | November 10, 2014 | THE DAILY BEAST
To the millions of Russians who listen to Echo both on the radio and online, the idea of life without Echo is unthinkable.The Kremlin Is Killing Echo of Moscow, Russia’s Last Independent Radio Station | Anna Nemtsova | November 7, 2014 | THE DAILY BEAST
Defying instructions would have been unthinkable during the tenure of his father or grandfather.
A few short years ago, says Pierre Monie, such a scene would have been nearly unthinkable.
And when Lessard flung out that last unthinkable accusation, the explosion came.Raw Gold | Bertrand W. Sinclair
While it is raw, and crude, and practically in its infancy, it at the same time suggests an unthinkable antiquity.Ancestors | Gertrude Atherton
This unthinkable giant had an arm about each pillar and strained as Samson had strained at the pillars of the temple.Ancestors | Gertrude Atherton
A thing purple and dripping with blood—ghastly—unthinkable—monstrous—a spectre of nightmare dreams!Love's Pilgrimage | Upton Sinclair
Both had made costly sacrifices, of which he was unworthy; but it was unthinkable that the sacrifices should be made in vain.The Girl From Keller's | Harold Bindloss
British Dictionary definitions for unthinkable
not to be contemplated; out of the question
- unthinkability or unthinkableness, noun
- unthinkably, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012