Definition of “unacceptable” - English Dictionary

british dictionary

“unacceptable” in British English

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unacceptableadjective

uk /ˌʌn.əkˈsep.tə.bəl/ us /ˌʌn.əkˈsep.t̬ə.bəl/

B2 too bad to be accepted, approved of, or allowed to continue:

The teachers' union has described the latest pay offer as unacceptable.
The taking of hostages, said the president, 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 Learner's Dictionary & Thesaurus © Cambridge University Press)

“unacceptable” in American English

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unacceptableadjective

us /ˌʌn·ɪkˈsep·tə·bəl/

too bad to be accepted, approved of, or allowed to continue:

These mistakes are unacceptable.
The proposal is unacceptable to theater owners.

(Definition of “unacceptable” from the Cambridge Academic Content Dictionary © Cambridge University Press)