unthinkable

[uhn-thing-kuh-buhl] / ʌnˈθɪŋ kə bəl /

ADJECTIVE

incredible, unusual

Synonyms

STRONGEST

absurd extraordinary illogical implausible impossible improbable inconceivable preposterous rare unbelievable uncommon unimaginable unlikely unreasonable

WEAK

beyond belief beyond possibility exceptional incogitable insupportable out of the question outlandish singular unique unordinary

Antonyms

STRONGEST

believable cheap common familiar imaginable likely logical normal ordinary plausible possible probably rational reasonable regular sensible tenable usual

WEAK

conceivable credible

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"On one hand, it would have been unthinkable a few months ago that Jodar could even be competing in a Grand Slam," Spanish tennis journalist Alejandro Ciriza told BBC Sport.

From BBC • Jun. 1, 2026

E. Jean Carroll achieved the unthinkable and might end up paying a price for it.

From Slate • Jun. 1, 2026

Such a close contest would have been unthinkable two years ago.

From Los Angeles Times • Jun. 1, 2026

After the chaotic ouster of Altman in late 2023, OpenAI’s board met with Anthropic to discuss a deal that now sounds unthinkable.

From The Wall Street Journal • May 18, 2026

If we were ever to put all our brains together in fact, to make a common mind the way the ants do, it would be an unthinkable thought, way over our heads.

From "The Lives of a Cell" by Lewis Thomas

unthinkable

Example Sentences

Related Words