voiceless Syllabification: (voice·less)Pronunciation: /ˈvoislis/Translate voiceless | into Italian Definition of voiceless adjective mute; speechless:how could he have remained voiceless in the face of her cruelty? not expressed:the air was charged with voiceless currents of thought (of a person or group) lacking the power or right to express an opinion or exert control over affairs. Phonetics (of a speech sound) uttered without resonance of the vocal cords, e.g., f as opposed to v, p as opposed to b, and s as opposed to z. Derivatives voicelessly adverb voicelessness noun voiceless in other Oxford dictionaries Definition of voiceless in the British & World English dictionary