I can't stand the unpleasantness of this situation.

There are many unpleasantnesses in life.

The weather today is very unpleasant.

The food at the restaurant was unpleasing.

She was unpleased with the service at the restaurant.

She is unpleasable no matter what I do.

The unpleasive smell coming from the garbage can was unbearable.

He couldn't help but feel a sense of unpleasance at the thought of attending the party.

There were many unpleasances at the party last night.

She is known for being unpleaseable, always finding something to complain about.