Voiceless Voice"less, a. 1. Having no voice, utterance, or vote; silent; mute; dumb. I live and die unheard, With a most voiceless thought, sheathing it as a sword. --Byron. 2. (Phon.) Not sounded with voice; as, a voiceless consonant; surd. Voiceless stop (Phon.), a consonant made with no audible sound except in the transition to or from another sound; a surd mute, as p, t, k. -- Voice"less*ly, adv. -- Voice"less*ness, n.