From Longman Dictionary of Contemporary Englishnoiselesslynoise‧less‧ly /ˈnɔɪzləsli/ adverb written QUIETwithout making any sound SYN silently We crept noiselessly down the hall. —noiseless adjective his noiseless footsteps
Examples from the Corpus
noiselessly• There are also four manner adverbs in -ly: indistinctly, heavily, insignificantly, and noiselessly.• Then it felt as though the world was sliding inside-out as, slowly, noiselessly, a panel swivelled in her mind.• Less than half an hour later she cleaned the brush in white spirit and pressed the lid of the tin noiselessly down.• Shadowy shapes changed position, flying noiselessly, giving brief glimpses.• Lightning flickered noiselessly in the western sky.• He smiled and noiselessly moved back across the thick carpet, slipped under the sheets and into the researcher's bed.• It was moving very fast, and noiselessly over the snowy road. 