unacceptable

US /ˌʌn.əkˈsep.t̬ə.bəl/
UK /ˌʌn.əkˈsep.t̬ə.bəl/
"unacceptable" picture
1.

not satisfactory or allowable

:
•
His behavior was completely unacceptable.
•
The quality of the product is unacceptable.
:
intolerableunbearableunsuitableimproperunfitting
:
acceptablesatisfactoryallowable