unvoiced [ʌnˈvɔɪst]

例句:

• The ancient unvoiced sounds came from your finger tip.
  太古清音发指端,月当松顶夜堂寒.
  
• What else I can do to avoid dealing with unvoiced frustrations and uncomfortable feelings?
  我还能做些什么来躲避那些说不出的失意和令人不快的感情 呢 .
  
• The trumpeter is noted for his use of an unvoiced tone, which he calls his whisper technique.
  来自BBC
• " "Voiced plosives, " we're told, "are like rigid, elastic hits, and unvoiced plosives like nonrigid, inelastic hits.
  来自WSJ