1. (

• unvoiced ,
• voiceless ,
• surd ,
• hard

) produced without vibration of the vocal cords; "unvoiced consonants such as `p' and `k' and `s'" ;

2. (

• unexpressed ,
• unsaid ,
• unstated ,
• unuttered ,
• unverbalized ,
• unverbalised ,
• unvoiced ,
• unspoken

) 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" ;