voiceless
1. [ adjective ] not using the voice
Synonyms: unvoiced
Examples:

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

Related terms: voiced unsung whispered
2. [ adjective ] (linguistics) of speech sounds
Synonyms: unvoiced surd
Related terms: sonant linguistics
3. [ adjective ] being voiceless through injury or illness and thus incapable of all but whispered speech
Synonyms: joiceless aphonic
Related terms: inarticulate
4. [ adjective ] uttered without voice
Synonyms: breathed
Examples:

"could hardly hear her breathed plea, `Help me'" "voiceless whispers"

Related terms: inaudible
Similar spelling:   voix_celeste
  vocalize
  vocalist
  vocalise
  Vogelsang
  vocaliser
  vocalic