beyond the pale
1
(of a person's words or actions) not according to what is considered acceptable or polite
The idiom "beyond the pale" has its origins in the historical use of the word "pale" to refer to a fence or boundary. Specifically, it refers to the English Pale in Ireland, which was a defined area under English control. It is used when discussing situations or conduct that is believed to be morally, socially, or culturally unacceptable.
- Her recent conduct is beyond the pale.
- His opinions are entirely beyond the pale.
- The language my father used was beyond the pale.