Voiceless

Adjective

 * 1) Lacking a voice, without vocal sound.
 * 2)  Spoken without vibration of the vocal cords; unvoiced.

Antonyms

 * voiced

Thesaurus
accented, alveolar, anaudic, aphasic, aphonic, apical, apico-alveolar, apico-dental, articulated, assimilated, back, bad, bare, barytone, bereft, bilabial, breathless, broad, cacuminal, central, cerebral, checked, close, consonant, consonantal, continuant, dental, denuded, deprived, destitute, dissimilated, dorsal, dumb, dumbfounded, dumbstricken, dumbstruck, empty, flat, front, glide, glossal, glottal, guttural, hard, heavy, high, inarticulate, innocent, intonated, invalid, labial, labiodental, labiovelar, lateral, lax, light, lingual, liquid, low, mid, monophthongal, mum, mute, muted, narrow, nasal, nasalized, null and void, occlusive, open, oxytone, palatal, palatalized, pharyngeal, pharyngealized, phonemic, phonetic, phonic, pitch, pitched, posttonic, retroflex, rounded, scant, semivowel, short, shy, soft, sonant, speechless, stopped, stressed, stricken dumb, strong, surd, syllabic, tense, thick, throaty, tonal, tongue-tied, tongueless, tonic, twangy, unaccented, unrounded, unstressed, velar, vocalic, vocoid, voiced, vowel, vowellike, weak, wide, wordless