Not pleasant or agreeable
Not pleasing in society
Not pleasing to the senses
Let's not think of unpleasant things right now.
I can make it unpleasant for you.
It would be an excellent opportunity to get out of this house with its unpleasant memories.
The trip to Fayetteville wasn't as unpleasant as she had anticipated.
Actually, her first morning of sickness had been unpleasant, until she discovered the cause was pregnancy.