not able to hear anything, or not able to hear very well. Many deaf people wear a hearing aid to help them hear. Deaf people often use their hands to communicate in sign language, and many can lip-read what other people are sayingtotally/partially deaf: She’s been totally deaf since birth.
profoundly deaf (=completely deaf): He has specialist training in working with profoundly deaf students.
deaf in: I’m a little deaf in one ear.