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Definitions

unbelievable

[uhn-bi-lee-vuh-buhl] / ˌʌn bɪˈli və bəl /
ADJECTIVE
beyond the imagination
Synonyms
STRONGEST
astonishing implausible impossible improbable inconceivable incredible outlandish preposterous too much unimaginable unthinkable
WEAK
beyond belief cockamamie cockeyed doubtful dubious far-fetched fishy flaky flimsy for the birds full of holes harebrained incogitable kooky lamebrained open to doubt past belief phony questionable reaching scatterbrained screwy staggering suspect thick thin unconvincing unsubstantial weak won't hold water won't wash
Antonyms
STRONGEST
believable conceivable credible imaginable likely plausible possible reasonable tenable
WEAK
real

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.

Unbelievable as it sounds, Turgidson was based on a real-life war hawk.

From Salon • Mar. 10, 2026

"Unbelievable statues, come and look at them," said the 79-year-old Republican as he admired two new figures adorning the Rose Garden.

From Barron's • Mar. 2, 2026

Former Rangers striker Steven Thompson called it a "wonderful goal" on Sportsound, adding "you've got to give Igamane so much credit. Unbelievable composure and accuracy from him".

From BBC • Nov. 28, 2024

"I like it, he has this sense of humour. Very similar to the Dortmund one a few years ago. Unbelievable."

From BBC • Oct. 23, 2024

“Je suis désolée—’’ Unbelievable, I am still trying to speak French to people.

From "Code Name Verity" by Elizabeth Wein

Vocabulary lists containing unbelievable

Wow! Synonyms for "Amazing"

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