Synonyms of muffled

1 Syllable
faint, whist, quiet, flat, dim, dull, mute
2 Syllables
faintest, unheard, strangled, subfusc, wordless, quieter, quieted, whister, fainter, muting, stifled, muter, quieting, quietest, low-key, muted, subdued, soft-sell
3 Syllables
nonvocal, soft-spoken, low-pitched, unsounded, suppressed, aphasiac, tongueless, obscure, unstressed, indistinct, unvocal, deadened, silenced, aphasic
4 Syllables
unhearable, unaccented, unpronounced, unfocused, incoherent, inaudible
5 Syllables
inobtrusive, incohesive
6 Syllables
inarticulate