adj.1 wholly or partly without hearing (deaf in one ear).
2 (foll. by to) refusing to listen or comply.
3 insensitive to harmony, rhythm, etc. (tone-deaf).
Phrases and idioms:
deaf-aid Brit. a hearing-aid. deaf-and-dumb alphabet (or language etc.) sign language
Usage:
Sign language is preferred in official use. deaf as a post completely deaf. deaf mute a deaf and dumb person. fall on deaf ears be ignored. turn a deaf ear (usu. foll. by to) be unresponsive.
Derivatives:
deafly adv. deafness n.
Etymology: OE deaf f. Gmc