From Longman Dictionary of Contemporary Englishunvoicedun‧voiced /ˌʌnˈvɔɪst◂/ adjective 1 EXPRESS#not expressed in words unvoiced fears2 SL technical unvoiced consonants are produced without moving your vocal cords. /d/ and /g/ are voiced consonants, and /t/ and /k/ are unvoiced.
Examples from the Corpus
unvoiced• In this list, the first sound of the pair is unvoiced, the second is voiced.• When sounds are unvoiced, the vocal cords are relaxed to allow the air a completely free passage. 