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English definition of “unacceptable”

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unacceptable

adjective uk   /ˌʌn.əkˈsep.tə.bl̩/ us    /-t̬ə-/
B2 too bad to be accepted, approved of, or allowed to continue: The unions have described the latest pay offer as unacceptable. The taking of hostages, said the minister, was totally unacceptable under any circumstances. The report found what it described as "unacceptable levels of air pollution" in several major cities.
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(Definition of unacceptable from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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