unpardonable

/ ʌnˈpɑːdənəbəl /

adjective

1. not excusable; disgraceful

Example Sentences

In 1999, his dismissal of Nato's military action in Yugoslavia as "unpardonable folly" was widely criticised.

From BBC

Salmond described the Nato action as "an act of dubious legality, but, above all, one of unpardonable folly" and was heavily criticised for his comments.

From BBC

After last November's guilty verdict from a jury in Los Angeles, US Attorney Martin Estrada said the deaths had been caused by the ship captain's "unpardonable cowardice".

From BBC

"This ship captain's unpardonable cowardice led to the deaths of 34 lives on Labor Day 2019," said United States Attorney Martin Estrada.

From BBC

In today’s House, that is an unpardonable GOP sin.

From Los Angeles Times