See stillness in Webster's New World Roget's A-Z Thesaurus II
noun
The absence of sound or noise:
hush, noiselessness, quiet, quietness, silence, soundlessness, still. See soundsAn absence of motion or disturbance:
calm, calmness, hush, lull, peace, peacefulness, placidity, placidness, quiet, quietness, serenity, tranquillity, untroubledness. See calm
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