He made a cautious circuit; scrambled up the hill with the utmost silence, and at length arrived, unperceived, within a proper distance.

The exciting fact was her having lived in an atmosphere so thick with drama that her own tendency to provoke it had apparently passed unperceived. It was precisely the odd absence of surprise in her that gave him the sense of her having been plucked out of a very maelstrom: the things she took for granted gave the measure of those she had rebelled against.

Francine had got back to her room unperceived, by way of the French window.

I followed them unperceived, waiting to present myself to her until the crowd about them had dispersed.

It was a pretty sight to see the one earnest, sweet-faced girl among the flock of tall lads, trying to understand, to help and please them with a patient affection that worked many a small miracle unperceived. Slang, rough manners, and careless habits were banished or bettered by the presence of a little gentlewoman; and all the manly virtues cropping up were encouraged by the hearty admiration bestowed upon them by one whose good opinion all valued more than they confessed; while Rose tried to imitate the good qualities she praised in them, to put away her girlish vanities and fears, to be strong and just, and frank and brave, as well as modest, kind, and beautiful.

All that was necessary to the attainment of his end was, that he should get into the vestry unperceived, that he should tear out the page in the register, and that he should leave the vestry again as privately as he had entered it.

The danger, however, was at present so unperceived, that they did not by any means rank as misfortunes with her.

As he turned to receive Rebecca's answer, he observed, that during his chattering with Gurth, she had left the apartment unperceived.

About four hours after we began our journey, I awaked by a very ridiculous accident; for the carriage being stopped a while, to adjust something that was out of order, two or three of the young natives had the curiosity to see how I looked when I was asleep; they climbed up into the engine, and advancing very softly to my face, one of them, an officer in the guards, put the sharp end of his half-pike a good way up into my left nostril, which tickled my nose like a straw, and made me sneeze violently; whereupon they stole off unperceived, and it was three weeks before I knew the cause of my waking so suddenly.

They can ask questions to uncover the needs you have, even the unperceived needs.

The tragedy is that such prejudices have remained on to our own days, and have been appropriated by the oppressed classes themselves, to their own unperceived humiliation.

I don't think the Wachowskis necessarily changed their gender Identities, as much as they invited us to realize a previously unperceived reality about them, which Is what their cinema is also always doing for audiences.

What unquestioned (and even unperceived) assumptions are people making?

Other felines contain apparent bold stripes but the markings present on the coats of lions are much fader that aids them to remain unperceived when following prey in tall grass (http://a-z-animals.com/animals/lion/).

* Unperceived threat (poor knowledge and skills, bottleneck of dependencies, superficial understanding of the new situation)