Somehow, the unannounced appearance was just like Onrad-or at least the Onrad that he had come to know over the years.

Oh, curse the boy for this unexpected and unannounced appearance!

It was no wonder that this building's unannounced appearance had, created such a stir.

He made a similarly unannounced appearance at the 2009 Royal Rumble but did not win.

So did his unannounced appearance at the Air and Space Museum, where he found himself attracting more attention than any of the exhibits.

After intermission, Madonna made an unannounced appearance to sing "Frozen," a song that urges a friend to let go of the past.

One keeps hoping that Chekhov will make an unannounced appearance.

The unannounced appearance of a two-year-old boy, one unknown to her medical staff, would give rise to a host of questions.

He was thawing a little now, but he was still searching for a reason behind my unannounced appearance.

Eastwood made an unannounced appearance at the convention, speaking at the top of the final hour.