Pronunciation: (vois'lis),[key] —adj. 1. having no voice; mute.
2. uttering no words; silent.
3. having an unmusical voice.
4. unspoken; unuttered: voiceless sympathy. 5. having no vote or right of choice.
6. Phonet.(of a speech sound)
a. without voice; unvoiced; surd; aphonic (contrasted with voiced): “p,” “f,” and “s” are voiceless. b. uttered without phonation.