A copy was discovered in 1922, after lying unnoticed in a family storeroom in Chicago for fifty years.

A small nut which had lain unnoticed on the floor was now slowly tumbling past Bruce's face.

For six months it had lain unnoticed and untouched.

The blood-stained City Hall keycard lies unnoticed under the floorboards.

Will lie unnoticed in the vault of time.

They might have lain unnoticed well into the spring, and been an unreadable riddle when they did reappear.

They would, probably, have drawn no attention to themselves, merely lying about unnoticed, undiscovered because familiar.

He took up a second letter which had lain unnoticed upon the table while he had been absorbed with the first.

As Rusty came shoreward, The Shadow flattened, to lie unnoticed.

The pin falls out of the neck of the dress and lies unnoticed.