Main Entry:

un·be·liev·able

Pronunciation:

\-ˈlē-və-bəl\

Function:

adjective

Date:

1548

: 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>

— un·be·liev·ably \-blē\ adverb