unbelievable

adjective

ˌən-bə-ˈlē-və-bəl How to pronounce unbelievable (audio)
Definition of unbelievablenext
as in incredible
too extraordinary or improbable to believe a completely unbelievable story about why there was lipstick on his collar

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

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 unbelievable So to be able to sort of sit at her feet and just listen to her life was an unbelievable gift. — Jem Aswad, Variety, 9 Oct. 2026 The final home game on the Capitals' regular season schedule this season is a matchup against the Penguins, which could set up an unbelievable scene with Ovechkin and Sidney Crosby battling things out at least one more time. — Mark Harris Outkick, FOXNews.com, 5 Oct. 2026 But while critics deemed the character overly simplistic and an ultimately unbelievable representation of evil (Cathy is an allegory for the serpent in the garden of Eden, after all), Pugh and Kazan, however, took a very different approach. — Chris Murphy, Vanity Fair, 30 Sep. 2026 The barking bunch performed unbelievable tricks in sync with music and choreography, leading to their victory. — Skyler Caruso, PEOPLE, 24 Sep. 2026 See All Example Sentences for unbelievable
Recent Examples of Synonyms for unbelievable
  1. incredible
  2. incredulous
  3. impossible
  4. unlikely
Adjective
  • Achieving incredible data transmission speed The researcher fabricated the device using a 300-millimeter silicon-on-insulator manufacturing process.
    — Rupendra Brahambhatt, Interesting Engineering, 24 Oct. 2026
  • This year’s incredible class of awardees includes Jason Bolden, Kellon Deryck, Molly Greenwald, Chris Horan, Amy Komorowski, Thuy Nguyen, Law Roach, and Trish Summerville.
    — InStyle, InStyle, 24 Oct. 2026
Definition of incredible
Adjective
  • Some congressional Democrats were incredulous, saying the email might simply have been deleted and that the firm’s analysis did not explain why or how someone might have manufactured the message.
    — New York Times, New York Times, 22 Oct. 2026
  • In a true turn of events that would seem almost incredulous in a Hollywood script, the boss of a now defunct production company that specialized in true crime is wanted by the Federal Bureau of Investigation.
    — Dominic Patten, Deadline, 14 Oct. 2026
Definition of incredulous
Adjective
  • Serhii Beskrestnov, a defense technology adviser to President Volodymyr Zelenskyy, said long-standing restrictions on the civilian system in Ukraine made such offensive use impossible.
    — Arkansas Online, Arkansas Online, 26 Oct. 2026
  • The two versions of Israel that could result are so divergent as to seem impossible to reconcile.
    — Ruth Margalit, New Yorker, 25 Oct. 2026
Definition of impossible
Adjective
  • Friedman began her remarks by reminding the audience of von Furstenberg’s unlikely beginning, born in Brussels to a Holocaust survivor.
    — Ariel Bielsky, Vogue, 24 Oct. 2026
  • Dahlia Scheindlin, a veteran pollster who works for left-of-center candidates and parties in Israel, speculated that the number of returning overseas voters was unlikely to be big enough to change the outcome of the election.
    — Daniel Brook, New Yorker, 24 Oct. 2026
Definition of unlikely

Browse Nearby Words

unbelief
unbelievable
unbelievably
See all Nearby Words

Cite this Entry

“Unbelievable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unbelievable. Accessed 30 Oct. 2026.

Copy Citation
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Last Updated: - Updated example sentences

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of reticent

See Definitions and Examples »

Popular in Grammar & Usage

See More

How to Use 'Who' vs. 'Whom'

Merriam-Webster’s Great Big List of Words You Love to Hate

'Affect' vs. 'Effect'

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?
See More

Popular in Wordplay

See More

The Longest Long Words List

9 Words That Sound Like Insults But Aren't

Pwn, Skibidi, Girlboss and Other Words Added to the 2026 Scrabble Dictionary

The Words of the Week - Oct. 30

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

How to Use 'Who' vs. 'Whom'

The Longest Long Words List

9 Words That Sound Like Insults But Aren't
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
different halloween monsters in silhouette
A Monstrous Vocab Quiz Words That Go Bump in the Night
See All