- Unable to hear, or only partially able to hear.
- (obsolete, Britain, dialect) Decayed; tasteless; dead.
- Obscurely heard; stifled; deadened.
- Unwilling to listen or be persuaded; determinedly inattentive; regardless.
"Those people are deaf to reason."
- Deaf people considered as a group.
- (obsolete, transitive) To deafen.