View synonyms for unbelievable


[ uhn-bi-lee-vuh-buhl ]


  1. too dubious or improbable to be believed:

    an unbelievable excuse.

  2. so remarkable as to strain credulity; extraordinary:

    the unbelievable fury of the storm; an unbelievable athlete.


/ ˌʌnbɪˈliːvəbəl /


  1. unable to be believed; incredible or astonishing

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Derived Forms

  • ˌunbeˌlievaˈbility, noun

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Other Words From

  • unbe·lieva·bly adverb

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Word History and Origins

Origin of unbelievable1

First recorded in 1540–50; un- 1 + believe ( def ) + -able ( def )

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Example Sentences

There couldn’t have been a more challenging game than that, and he won in such unbelievable fashion.

It was unbelievable to me that folks who call themselves patriots would actually be trying to overthrow the government and stop us from doing our constitutional duty to certify the ballots.

From Fortune

This is just another consequence of a truly shocking and unbelievable day in American history.

Even if it was just an hour to Germany, the hour time difference, the going through airports on both sides led to unbelievable tiredness… just for a 60-minute presentation.

From Digiday

“It feels really unbelievable,” said Roudabeh Kishi, director of research and innovation with the nonprofit Armed Conflict Location & Event Data Project.

Animals jumped through unbelievable hoops and seemingly appeared out of thin air.

Manson seemed to breathe soundlessly, to walk with unbelievable silence over creaky floors.

Coltrane, a man of almost unbelievable gentleness made human to us lesser mortals by his very occasional rages.

And though the theology of Left Behind is strange and unbelievable, it also could, in the right hands, inspire a hell of a story.

“That is an unbelievable amount of money—as in, I literally did not believe that,” Oliver said.

It was a pool-side scene, with hotel and tropical palms against an unbelievable blue sky.

Too much that was unbelievable by old standards had happened around him.

It was almost unbelievable to herself that her life could be permeated by a thing Edith knew nothing about.

The thing sounds unbelievable, and ridiculous; but she wanted to keep me forever at the age of thirteen and a half.

"It's more than interesting, it's marvelous, it's unbelievable," answered the detective quietly.