Inexcusable

When anyone tries to explain the inexplicable, he is getting ready to excuse the inexcusable.

Tom's behaviour at the party was inexcusable.

Tom's behavior at the party was inexcusable.

Your behavior was inexcusable.

Tom's behavior was inexcusable.

These are inexcusable mistakes.

This is inexcusable.

This disorderliness is inexcusable.

What you have done is absolutely inexcusable.

What you've done is absolutely inexcusable.

It's completely inexcusable that communities in the north of England are having to experience such a dire level of service.