Слово "noiseless". Англо-русский словарь Мюллера

I turned as noiselessly as possible, and becoming every now and then rigid with the fear of being discovered, as a branch cracked or a leaf rustled, I pushed back into the bushes.

As they slid along, noiseless as shadows, in the moonlight, they came upon a run-way. Both noses went down to the footprints in the snow.

`Because,' the foreigner replied and, narrowing his eyes, looked into the sky, where, anticipating the cool of the evening, black birds were tracing noiselessly, 'Annushka has already bought the sunflower oil, and has not only bought it, but has already spilled it.

From the dim woods on either bank, Night’s ghostly army, the grey shadows, creep out with noiseless tread to chase away the lingering rear-guard of the light, and pass, with noiseless, unseen feet, above the waving river-grass, and through the sighing rushes; and Night, upon her sombre throne, folds her black wings above the darkening world, and, from her phantom palace, lit by the pale stars, reigns in stillness. River scene

I closed the door noiselessly and crept towards the window.