Of the voice, etc.: Not clear; hoarse; having a confused or husky sound; indistinct, inarticulate; also, of low pitch; deep; guttural; throaty.

Not made distinct to perception. Indistinct, confused. Now rare.

Hardly perceptible; indistinct; faint; spec. lacking clarity of form or outline; undefined; hardly perceptible to the eye. Now rare.

Of the voice: thick, indistinct, esp. as a result of drinking alcohol. Obsolete. rare.

Thick, indistinct.

transferred and figurative. Lacking in definiteness or incisiveness; ‘muzzy’; (of the mind, etc.) confused and hazy; (of painting, etc.) lacking in…

Of the voice: Muffled.

Of a voice: sounding faint as if from a distance.