unbelievable
Americanadjective
-
too dubious or improbable to be believed.
an unbelievable excuse.
-
so remarkable as to strain credulity; extraordinary.
the unbelievable fury of the storm; an unbelievable athlete.
adjective
Other Word Forms
- unbelievability noun
- unbelievably adverb
Etymology
Origin of unbelievable
First recorded in 1540–50; un- 1 + believe ( def. ) + -able ( def. )
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.
“Does that sound fantastical? Yes, it totally sounds fantastical. That’s why it’s obscene and conspicuous and unbelievable, because it’s probably never going to happen.”
From Barron's
“Does that sound fantastical? Yes, it totally sounds fantastical. That’s why it’s obscene and conspicuous and unbelievable, because it’s probably never going to happen.”
From Barron's
"He's learning on the job, which is an unbelievable effort," added Cook.
From BBC
"It's unbelievable," legendary Class of '92 member and former United head of academy Nicky Butt told the Times in an interview in October.
From BBC
Many were still absorbing the almost unbelievable turn of events that has surely transformed the nation’s future — albeit in still unpredictable ways.
From Los Angeles Times
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.