It seemed to Isabella that this was a solemn moment.

One reason it works so well is that its solemn moments come at the beginning.

It was a solemn moment witnessed by only a handful of people.

The crowd grew quiet, knowing a solemn moment was finally at hand.

Now the solemn moment that you all have been waiting for has arrived.

Now the solemn moment would come when he asked me to surrender my arms.

It was a sad and solemn moment for all.

This was for me a solemn and terrible moment.

And I really must say at this solemn moment that there is great cause for concern here.