unbelievable
//ˌʌn.bɪˈliː.və.bəl//
Adjective
unbelievableCanonical form
more unbelievableComparative
most unbelievableSuperlative
1
So extraordinary or remarkable as to be difficult to believe; astonishing.
The view from the mountain top was unbelievable.
2
Not able to be believed; implausible or unconvincing.
His excuse was so unbelievable that no one accepted it.