deaf in WordNet English dictionary

1. people who have severe hearing impairments
   "many of the deaf use sign language"
   deaf 
   

1. make or render deaf
   "a deafening noise"
   deafen  deaf 
   

1. lacking or deprived of the sense of hearing wholly or in part
   deaf 
   
2. (usually followed by `to') unwilling or refusing to pay heed
   "deaf to her warnings"
   deaf  indifferent