voiceless

adjective

1. 1

   being without sound through injury or illness and thus incapable of all but whispered speech

2. 2

   uttered without voice

   could hardly hear her breathed plea, `Help me'

   voiceless whispers

3. 3

   deprived of the rights of citizenship especially the right to vote

   labor was voiceless

   disenfrenchised masses took to the streets

4. 4

   produced without vibration of the vocal cords

   unvoiced consonants such as `p' and `k' and `s'