From The Collaborative International Dictionary of English v.0.44 [gcide]:
From WordNet (r) 2.0 [wn]:
From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:
29 Moby Thesaurus words for "noiseless": damped, dampened, deadened, echoless, hush, hush as death, hushed, inaudible, mousy, muffled, mute, muted, quiescent, quiet, silent, soft, soundless, still, still as death, stilly, subaudible, unarticulated, unhearable, unpronounced, unsounded, unuttered, unvocalized, unvoiced, whist
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