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 The lasting impact of the series would be unthinkable without the Barnabas character – the vampire was even slyly name-checked in the current hit Apple TV+ series Widow’s Bay. — Greg Evans, Deadline, 18 July 2026 This ongoing divide is a recipe for frustration at best and unthinkable defeat at worst. — Bill McKibben, New Yorker, 16 July 2026 One expert says such children, who may not speak very good English and are dealing with unthinkable trauma, also have unique needs. — Aj Willingham, AJC.com, 13 July 2026 In every way, such programs are unthinkable in Norway, a highly egalitarian society, in which wealth and resources are distributed evenly. — Don Riddell, CNN Money, 11 July 2026 See All Example Sentences for unthinkable

Recent Examples of Synonyms for unthinkable

Adjective

For kids and teens, this can be an incredible way to experience the world up close and personal with the familiarity and comfort that comes from your hotel traveling with you.

— Judy Koutsky, Forbes.com, 25 July 2026
The night sky has incredible depth, and there's nowhere better to learn how to appreciate that than when gazing at the Summer Triangle.

— Jamie Carter, Space.com, 24 July 2026

Definition of incredible

Adjective

Getty Images At first sight, Hannia Zia and Joana Ferreira are unlikely founders of a start-up promising to shake up the American construction industry.

— David Prosser, Forbes.com, 21 July 2026
Many of the athletes represented are unlikely to earn significant NIL money—some might not earn any—by playing another season.

— Michael McCann, Sportico.com, 20 July 2026

Definition of unlikely

Adjective

In Uvalde — where the scars of the 2022 Robb Elementary School shooting remain impossible to ignore — one person was killed and dozens of homes were destroyed, compounding years of the community’s collective grief.

— Alaa Elassar, CNN Money, 20 July 2026
Four years after Minnesota’s Feeding Our Future fraud scandal emerged, theft from government programs has become impossible for state leaders to ignore as allegations continue to arise.

— Alex Derosier, Twin Cities, 19 July 2026

Definition of impossible

Adjective

This analogy is strangely anticlimactic and almost consoling, but a pedestrian ending comes with the territory in a scrupulously realistic book about the inconceivable.

— Gideon Lewis-Kraus, New Yorker, 25 July 2026
The major innovation of pocket books became the big selling point of Casa Editorial Maucci, which saw its products sell at an inconceivable rate, spreading like wildfire.

— Literary Hub, Literary Hub, 22 July 2026

Definition of inconceivable

Adjective

Paul Peschisolido became Fulham’s first £1million signing, then Chris Coleman arrived for £2m — fees that had been unimaginable in the third tier.

— James Pearce, New York Times, 22 July 2026
All because voters assumed that simply reaching the SEC Championship Game and beating Georgia was an unimaginable accomplishment.

— Ian Miller OutKick, FOXNews.com, 21 July 2026

Definition of unimaginable

Adjective

The 15 stories below range from frustrating to funny to downright unbelievable, but each comes with a practical takeaway that could help another traveler avoid the same fate.

— Josh Rivera, USA Today, 19 July 2026
Simon Hughes Yet another unbelievable goal from Mbappe Whoever ends up winning the Golden Boot will have a highlight reel for the ages.

— Amy Lawrence, New York Times, 9 July 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 27 Jul. 2026.

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Synonyms of unthinkable

adjective

Example Sentences

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