1 not adequate to give satisfaction; "the coach told his players that defeat was unacceptable"
2 not acceptable; not welcome; "a word unacceptable in polite society"; "an unacceptable violation of personal freedom" [ant: acceptable]
3 used of persons or their behavior; "impossible behavior"; "insufferable insolence" [syn: impossible, insufferable, unsufferable]
4 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'" [syn: unaccepted]
unacceptable in French: Impropre
bad, disagreeable, discommendable, distasteful, exceptionable, ill-favored, illaudable, impossible, improper, inadmissible, inappropriate, indefensible, intolerable, objectionable, tasteless, unagreeable, unallowable, unasked, unbidden, uncommendable, undesirable, uninvited, unpleasant, unpraiseworthy, unsatisfactory, unsuitable, untenable, unwanted, unwelcome, wrong