Sentence examples for a grievous understatement from inspiring English sources

It would be a grievous understatement to call her a mere martyr.

To say that this gentleman had obviously just been doing cocaine would have been an grievous understatement: He looked like he had just head-butted a pastry chef.

That proved a serious understatement.

This a grievous blow.

This was a grievous error.

This is a grievous, self-inflicted wound.

I believe it is a grievous mistake".

That would be a grievous mistake.

A bit of an understatement.

It was a wild understatement.

This was a colossal understatement.