n. The quality or state of being noiseless; quiet or hush.
The Century Dictionary and Cyclopedia
n. The state of being noiseless or silent; absence of noise; silence.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the property of making no noise
Word Usage
"A live musical performance to accompany a restored print of a film of Captain Scott's tragic polar quest highlights the shattering impact of noiselessness"