defining is a form of:

Noiseless



adjective
1.
(Making no noise silent) ដែលស្ងាត់, ដែលគ្មានសំឡេង, ដែលនៅស្ងៀម (មិននិយាយ), ដែលមិនសូវនិយាយស្ដី
Example: Make a noise, The noise of trains on the bridge, Noise of a banging door.
ENGLISH MEANING
adjective
1.
Making, or causing, no noise or bustle; without noise; silent; as, the noiseless foot of time.