unacceptable

Adjective
  1. Not adequate to give satisfaction (synset 302090199)
    "the coach told his players that defeat was unacceptable"
  2. Not acceptable;
    Not welcome (synset 300018622)
    "a word unacceptable in polite society"; "an unacceptable violation of personal freedom"
  3. (used of persons or their behavior) not acceptable or reasonable (synset 302445119)
    "impossible behavior"
  4. Not conforming to standard usage (synset 302306447)
    "the following use of `access' was judged unacceptable by a panel of linguists; `You can access your cash at any of 300 automatic tellers'"

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