unforgivable in a sentence

Taking your sister’s CD player without asking, and then losing it is unforgivable.

You should be ashamed of yourself.

924009 What happened in the wake of his death was unforgivable though.

In the world of mobile technology, these delays are small, unforgivable eternities.

What is unforgivable is that the absurd drama of the missing pole is not a one-off incident.