THESAURUS
voiceless
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
ROGET THESAURUS
voiceless
Aphony
N
aphony, aphonia, dumbness, obmutescence, absence of voice, want of voice, dysphony, cacoepy, silence, raucity, harsh voice &c, unmusical voice, falsetto, childish treble mute, dummy, aphonous, dumb, mute, deafmute, deaf and dumb, mum, tongue-tied, breathless, tongueless,
voiceless, speechless, wordless, mute as a fish, mute as a stockfish, mute as a mackerel, silent, muzzled, inarticulate, inaudible, croaking, raucous, hoarse, husky, dry, hollow, sepulchral, hoarse as a raven, rough, with bated breath, with the finger on the lips, sotto voce, in a low tone, in a cracked voice, in a broken voice, vox faucibus haesit.