They stood, unobserved, at a little distance, and heard the service.
He wanted to feel himself alone in wakefulness and unobserved.
Outside the window was a little Hindu boy, unobserved by any in the house.
Philip's eyes were streaming, and, unobserved, he put the lesson-book to his lips.
So absorbed were they that Pete passed some of them unobserved.
I managed to slip ...