The late unpleasantness was a difficult time for our country.

The late unpleasantnesses caused a lot of tension in the community.

She spoke unpleasantly to her coworkers.

I experienced an unpleasantry at the party last night.

He encountered several unpleasantries during his trip.

This weather is unpleasanter than yesterday.

This is the unpleasantest experience I've ever had.

The weather today is quite unpleasantish.