Simple Definition of deaf
: not able to hear
: not willing to listen to or consider something
Full Definition of deaf
1 : lacking or deficient in the sense of hearing
2 : unwilling to hear or listen : not to be persuaded <was overwrought and deaf to reason>
Examples of deaf
He has been deaf since birth.
She's completely deaf in her right ear.
He's going a little deaf so you'll have to speak up.
Origin of deaf
Middle English deef, from Old English dēaf; akin to Greek typhlos blind, typhein to smoke, Latin fumus smoke — more at fume
First Known Use: before 12th century
Medical Definition of deaf
: lacking or deficient in the sense of hearing
Seen and Heard
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