unvoiced

adjective

1. not voiced; not uttered: unvoiced complaints.
2. Phonetics. voiceless; without voice; surd: unvoiced consonants.

verb (used with or without object), un·voiced, un·voic·ing. Phonetics.

1. devoice.

adjective

1. not expressed or spoken
2. articulated without vibration of the vocal cords; voiceless

verb (tr)

1. to pronounce without vibration of the vocal cords
2. another word for devoice