voiceless
adjective uk/ˈvɔɪs.ləs/ us/ˈvɔɪs.ləs/
literary无发言权的
If a group of people is voiceless, it does not have the power or the legal right to express their opinions.
He spent his life fighting for the rights of the voiceless and the underprivileged. 他毕生都致力于维护那些无发言权和贫苦阶层的人民的权利。
phonetics specialized清音的
(of a speech sound) produced without making the vocal cords move
Opposite: voiced
Synonym: unvoiced