unacceptable

adjectives

not adequate to give satisfaction
"the coach told his players that defeat was unacceptable"
is derived from
is similar to
not giving satisfaction
"shops should take back unsatisfactory goods"; "her performance proved to be unsatisfactory"; "life is becoming increasingly unsatifactory"; "our discussion was very unsatisfactory"
not acceptable; not welcome
"a word unacceptable in polite society"; "an unacceptable violation of personal freedom"
is derived from
is derived from
antonym
is similar to
liable to objection or debate; used of something one might take exception to
"a thoroughly unpleasant highly exceptionable piece of writing"; "found the politician's views objectionable"
see also
not giving satisfaction
"shops should take back unsatisfactory goods"; "her performance proved to be unsatisfactory"; "life is becoming increasingly unsatifactory"; "our discussion was very unsatisfactory"
see also
not welcome; not giving pleasure or received with pleasure
"unwelcome publicity"; "unwelcome interruptions"; "unwelcome visitors"
used of persons or their behavior
"impossible behavior"; "insufferable insolence"
is derived from
is derived from
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'"
is derived from