deaf

American Heritage® Dictionary of the English Language, Fourth Edition

1. adj. Partially or completely lacking in the sense of hearing.
2. adj. Of or relating to the Deaf or their culture.
3. adj. Unwilling or refusing to listen; heedless: was deaf to our objections.
4. n. Deaf people considered as a group. Used with the.
5. n. The community of deaf people who use American Sign Language as a primary means of communication. Used with the.

Century Dictionary and Cyclopedia

1. Lacking the sense of hearing; insensible to sounds.
2. Unable to hear, or to hear clearly, in consequence of some defect or obstruction in the organs of hearing; defective in ability to perceive or discriminate sounds; dull of hearing: as, a deaf man; to be deaf in one ear.
3. Refusing to listen or to hear; unwilling to regard or give heed; unmoved or unpersuaded; insensible: as, deaf to entreaty; deaf to all argument or reason.
4. Lacking sharpness or clearness; dull; stifled; obscurely heard; confused.
5. Numb.
6. Barren; sterile; blasted: as, deaf land; deaf corn.
7. To make deaf; deprive of hearing; deafen; stun with noise.

Wiktionary

1. adj. Not having the faculty of hearing, or only partially able to hear.
2. n. Deaf people considered as a group.
3. v. obsolete, transitive To deafen.

GNU Webster's 1913

1. adj. Wanting the sense of hearing, either wholly or in part; unable to perceive sounds; hard of hearing.
2. adj. Unwilling to hear or listen; determinedly inattentive; regardless; not to be persuaded as to facts, argument, or exhortation; -- with to.
3. adj. Deprived of the power of hearing; deafened.
4. adj. rare Obscurely heard; stifled; deadened.
5. adj. Obs. or Prov. Eng. Decayed; tasteless; dead.
6. v. obsolete To deafen.

WordNet 3.0

1. adj. (usually followed by `to') unwilling or refusing to pay heed
2. adj. lacking or deprived of the sense of hearing wholly or in part
3. n. people who have severe hearing impairments
4. v. make or render deaf