D0181900 (dē-vois′)tr.v.de·voiced, de·voic·ing, de·voic·es To pronounce (a normally voiced sound) without vibration of the vocal cords so as to make it wholly or partly voiceless.
devoiced
(diːˈvɔɪst) adj (Phonetics & Phonology) phonetics having been made voicelessThesaurusSeedevoice