Sentence examples similar to mildly grave from inspiring English sources

He nodded, his expression grave as well as mildly puzzled.

It's more like a teasing, mildly titillating pulling-down-the-covers off some naughty but hardly grave adolescent behavior".

Mildly worried.

Mildly unenthusiastically.

Mildly disgruntled.

Mildly embarrassing.

The grave.

That was mildly fun.

How grave is too grave?

So has NATO, mildly.

This is mildly unsettling.