|a.||1.||Not acceptable; not pleasing; not welcome; unpleasant; disagreeable; displeasing; offensive.|
|Adj.||1.||unacceptable - not adequate to give satisfaction; "the coach told his players that defeat was unacceptable"|
|2.||unacceptable - not acceptable; not welcome; "a word unacceptable in polite society"; "an unacceptable violation of personal freedom"|
acceptable - worthy of acceptance or satisfactory; "acceptable levels of radiation"; "performances varied from acceptable to excellent"
|3.||unacceptable - used of persons or their behavior; "impossible behavior"; "insufferable insolence"|
|4.||unacceptable - not conforming to standard usage; "the following use of `access' was judged unacceptable by a panel of linguists; `You can access your cash at any of 300 automatic tellers'"|