Meanings of unprecedented breach in English

In an unprecedented breach of media etiquette, journalist turns around to look, and presently disappears from view.

The government responded that there was no vacancy, but the suggestion, an unprecedented breach of diplomatic protocol, was embarrassing for Downing Street.

In an unprecedented breach of civil service protocol, the permanent secretary to the Treasury, Sir Nicholas Macpherson, published his private advice to the chancellor.

The 2nd Circuit majority agreed, calling the law "an unprecedented breach of longstanding deference to federalism," the principle that allows states to regulate marriage.

There's been unprecedented breaches of human rights and the treatment of Māori women has been inhumane.