0 too bad to be accepted or allowed to continue -- inadmisible
That kind of behaviour is completely unacceptable.
1 being too bad to be allowed or accepted -- inaceptable [ masculine-feminine, singular ]
This is a truly unacceptable state of affairs.
Though this risk is considered remote, the committee thought the risk was unacceptable and recommended that the gene be excised before the maize could be used as animal feed.
That is of course unacceptable.
This is unacceptable, humiliating and inadmissible.
I propose to delete the word 'unacceptable'.
The statement you made is unacceptable.
This is objectionable and unacceptable.
That is unacceptable, in our opinion.
