ruefully

Perhaps that name should not be felt so ruefully today, despite the reversion to authoritarian control in Egypt.
You Say You Want to Name a Revolution?|Jack DuVall|October 5, 2014|DAILY BEAST
And yet, Norton says ruefully, “You know the old expression: ‘Wherever I went, there I was.’ ”
Jim Norton And His Many Vices|Lloyd Grove|July 25, 2014|DAILY BEAST
Somewhere, a no-longer-in-the-league Tebow is ruefully nodding.
Don’t Cry for Johnny Football. The NFL’s 22nd Pick Will Do Just Fine.|Ben Teitelbaum|May 9, 2014|DAILY BEAST
At the climax of the play, Willy Loman ruefully tells his two sons that he was fired that day from his job.
From Katrina to the Clink: Ex New Orleans Mayor Heads to Prison|Jason Berry|February 13, 2014|DAILY BEAST

She owes money to a lot of people, she says smiling ruefully.
Chopped? Amanda Freitag Hopes Not|Tim Teeman|February 4, 2014|DAILY BEAST
Ruefully Aristide found no answers save in the general chuckle-headedness of mankind.
The Joyous Adventures of Aristide Pujol|William J. Locke
Ruefully Aristide asked himself the question: why had the Mayor not taken him into the confidence of his masquerading escapade?
The Joyous Adventures of Aristide Pujol|William J. Locke
Aristide looking at the remainder rather ruefully made a great resolution.
The Joyous Adventures of Aristide Pujol|William J. Locke
Dane glanced at Winston somewhat ruefully, but the latter's eyes were fixed on Colonel Barrington.
Winston of the Prairie|Harold Bindloss
Somebody had scuffed his right shoe in getting out and now he pulled up the pant leg of his dark grey suit to study it ruefully.
Hooded Detective, Volume III No. 2, January, 1942|Various