Also found in: Thesaurus, Medical, Idioms, Wikipedia.
1. Having a diminished or defective sense of hearing, but not deaf; hard of hearing.
2. Completely incapable of hearing; deaf.
n. (used with a pl. verb)
Persons who are deficient in hearing or are deaf. Used with the: The hearing-impaired are provided with special services at school.
having reduced or deficient hearing ability.