adv. [f. prec.] In a voiceless manner; without speech or utterance; silently.

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1851.  Meredith, Daphne, lii. Voicelessly the forest Virgin Vanished!

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1887.  T. Hempstead, in Harper’s Mag., April, 677. The river sliding there, Voicelessly, slowly down.

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1890.  D. C. Murray, J. Vale, xxviii. One of the men brought them some coarse food, and the engineer, accustomed to rough fare, attacked it cheerfully; but Snelling waved it voicelessly away.

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