voiceless (Adjective) — Produced without vibration of the vocal cords. ex. "voiceless consonants such as 'p' and 'k' and 's'"
voiceless (Adjective) — Deprived of the rights of citizenship especially the right to vote. ex. "labour was voiceless"
voiceless (Adjective) — Uttered without voice. ex. "voiceless whispers"
voiceless (Adjective) — Being without sound through injury or illness and thus incapable of all but whispered speech.