It should say, "Uninvited". To turn up = arrive Out of the blue = with no warning Uninvited = people didn't ask you to come I don't know why they say, "out of the blue" maybe from, "the deep blue sea" that could mean from somewhere that can't been seen (the bottom of the sea). Who the hell knows? Who invented English? Let's block him!! hehehe

This line comes from Adele's song Someone like You. It means that she went to see her ex boyfriend without phoning him first.

Hi. I think the question is, what does "out of the blue" mean? "Out of the blue" means "to happen unexpectedly", as if something suddenly dropped out of the blue sky. So we have "I hate to turn up uninvited" with "out of the blue" added as an adjectival phrase. The meaning of "I hate to turn up out of the blue, uninvited" is therefore, "I am sorry to arrive unexpectedly and uninvited."

To be invited out of the blue, means you did not get invited early enough to make plans. It is like someone invited you at the last moment, and you do not feel really welcome. If you attended a party, dinner, or event "out-of-the-blue", that means you were not invited, and it would be a surprise that you "showed up" or arrived, because you did not receive an invitation. You arrived "out of the blue"....or on the spur of the moment, and they did not expect you to come.

now that you have the answer, i have to say, i really enjoy the question. :) it sounds like the name of a band: The Blue Invited. or even--The Blue Uninvited.