An unwelcome guest.
Was offended by his unwelcome attentions.
Monday came unwelcome for Carmen.
I don't mean to make her feel unwelcome, but it was her own carelessness that got her into this situation.
His tone and expression awoke an old unwelcome feeling.
Pulling her blanket from under the wagon seat, she shook it and checked under the wagon for unwelcome guests.
Once again, she mimicked his unwelcome feelings perfectly.