[adjective] - too bad to be accepted, approved of or allowed to continueThe unions have described the latest pay offer as unacceptable.The fact that millions of people are living in poverty in one of the richest nations in the world is totally 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.(UK and ANZ) The unacceptable face of a particular system or set of beliefs is the bad side to it.The paper showed a picture of homeless people sleeping on the streets with the caption underneath 'the unacceptable face of capitalism'.
UNACCEPTABLE
Meaning of UNACCEPTABLE in English
Cambridge English vocab. Кембриджский английский словарь. 2012