Meaning of ACCEPTABLE in English

ACCEPTABLE

[adjective]Clearly we need to come to an arrangement that is acceptable (= satisfactory) to both parties.So what is an acceptable level of radiation (= one that people will agree is not too dangerous)?This kind of attitude is simply not acceptable (= cannot be socially or morally approved of).(formal) Thank you so much for your gift. It was most acceptable (= welcome)."Will a £50 donation be enough?" "Yes, that would be quite acceptable (= enough)."

Cambridge English vocab.      Кембриджский английский словарь.