tone-deaf       
adjective uk/ˌtəʊnˈdef/ us/ˌtoʊnˈdef/
 不能辨别音高的
Someone who is tone-deaf is not able to recognize different notes or sing tunes accurately.
  I'm not quite tone-deaf, but a singing career has never been something I've considered.
 - More examples
 - He always knew he couldn't carry a tune. But is he genuinely tone-deaf, or just off key?
 - Why was this spectacularly tone-deaf singer able to headline a sold-out concert at Carnegie Hall in 1944?
 - She complains that the store's management has been tone-deaf when it comes to women's issues.
 - The mayor is obviously tone-deaf when it comes to legitimate citizens' grievances.
 - The chief executive gave an interview which included some breathtakingly tone-deaf remarks about the crisis.