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