Dictionary

unbelievable

adjective un·be·liev·able \-ˈlē-və-bəl\

: difficult or impossible to believe

—used to describe something that is so good, bad, etc., that it is difficult to believe

Full Definition of UNBELIEVABLE

:  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
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Examples of UNBELIEVABLE

  1. <a completely unbelievable story about why there was lipstick on his collar>

First Known Use of UNBELIEVABLE

1548
UNBELIEVABLE Defined for Kids

unbelievable

adjective un·be·liev·able \ˌən-bə-ˈlē-və-bəl\

Definition of UNBELIEVABLE for Kids

1
:  too unlikely to be believed <an unbelievable excuse>
2
:  very impressive or amazing <an unbelievable catch>
un·be·liev·ably \-blē\ adverb <unbelievably delicious>

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