deaf

deaf (http://definr.com/deaf)

     adj 1: lacking or deprive of the sense of hearing wholly or in part
            [ant: hearing(a)]
     2: (usually followed by `to') unwilling or refusing to pay
        heed; "deaf to her warnings" [syn: deaf(p), indifferent(p)]
     n : people who have severe hearing impairments; "many of the
         deaf use sign language"
     v : make or render deaf [syn: deafen]