unbelievable

adjective

un·​be·​liev·​able ˌən-bə-ˈlē-və-bəl 

: too improbable for belief

the plot is unreal and unbelievable

also : of such a superlative degree as to be hard to believe

the destruction was unbelievable

made an unbelievable catch in center field

unbelievably

ˌən-bə-ˈlē-və-blē 

adverb

Synonyms

• fantastic
• fantastical
• implausible
• inconceivable
• incredible
• incredulous
• uncompelling
• unconceivable
• unconvincing
• unimaginable
• unthinkable

Examples of unbelievable in a Sentence

a completely unbelievable story about why there was lipstick on his collar

Recent Examples on the Web

Choose from classic gift sets with bubbly for NYE toasts, an unbelievable Fireball keg for the party boy in your life and of course, the top-selling Total Wine Advent calendar for someone extra special. —Kasey Caminiti, USA TODAY, 18 Nov. 2024

Stereophonic is there right now and the set is unbelievable. —Shivani Vora, Forbes, 31 Oct. 2024

The prop master was unbelievable in putting together props that could show these scenes in the way that the diaries described them in front of that screen. —Allegra Rosenberg, Condé Nast Traveler, 25 Oct. 2024

And three days later this unbelievable shooting occurred. —Thomas G. Moukawsher, Newsweek, 4 Nov. 2024

Word History

First Known Use

1548, in the meaning defined above

Kids Definition

unbelievable

adjective

un·​be·​liev·​able ˌən-bə-ˈlē-və-bəl 

1

: too unlikely for belief

an unbelievable story

2

: very significant or impressive

made an unbelievable catch in center field

unbelievably

-blē 

adverb