noiseless

Adjective

noiseless (comparative more noiseless, superlative most noiseless)

1. Producing no noise; without noise.
   • The movements of the cat were noiseless as it approached the mousehole.
   • For by the hearth the children sit
     ⁠Cold in that atmosphere of Death,
     ⁠And scarce endure to draw the breath,
     Or like to noiseless phantoms flit:
     But open converse is there none, […]1850, [Alfred, Lord Tennyson], “Canto XX”, in In Memoriam, London: Edward Moxon, […], →OCLC, page 33

   Synonyms:

   noise-free

2. Containing no noise.
   • The core idea of the Nostega paradign is basically camouflaging messages by embedding them in a form of noiseless data by employing either altered authenticated data or legitimate untraceable data, as shown in Section 1.3.2016, Abdelrahman Desoky, Noiseless Steganography, page 4