But that's precisely what the pope did: he removed from the Catholic catechism the criterion "in cases of extreme gravity."

To use violence against them was an offence of extreme gravity.

Mr Mowett's cheerful look changed to one of extreme gravity.

Fully appreciate extreme gravity, dangers and complexities of the situation.

"And now do you understand," he asked, "the extreme gravity of the action you have committed?"

He felt so strongly on this point that he spoke with extreme gravity: "Are you aware of what we're attempting?

Trinket granted him leave, and (realizing the extreme gravity of the situation) decided that now was the time to take steps to win him over.

'I'm quite sure you realize the extreme gravity of the situation.'

In my view, this concerns situations of extreme gravity and extreme disruption.

This is a music of extreme gravity and import.