Webster's Revised Unabridged Dictionary · 1913

Voiceless

Voiceless , adjective

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.
(Phonetics) Not sounded with voice; as, a voiceless consonant; surd.
Collocations (1)
Voiceless stop (Phonetics) , a consonant made with no audible sound except in the transition to or from another sound; a surd mute, as p, t, k.