not made explicit; "the unexpressed terms of the agreement"; "things left unsaid"; "some kind of unspoken agreement"; "his action is clear but his reason remains unstated"

A sound in which the vocal cords do not vibrate.

(adj.) Pronounced without vibrating the vocal cords, as the th- in the word thistle.

To present participles which come from intransitive verbs, or are themselves employed as adjectives, to mark the absence of the activity, disposition, or condition implied by the participle;

not using the voice; "unvoiced thoughts"; "unvoiced consonants such as `p' and `k' and `s'"

of speech sounds