Jisho

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Noun, No-adjective
1. tone-deafness; amusia; having no ear for music
Na-adjective
2. tone-deaf; off-key
  • あいつ
  • じぶん自分
  • おんち音痴
  • って
  • こと
  • 知らない
  • He doesn't realise that he's tone deaf.
Suffix
3. having no sense (of something); being hopeless (when it comes to something)
Wikipedia definition
4. Tone deafnessTone deafness is the lack of relative pitch, or the inability to distinguish between musical notes that is not due to the lack of musical training or education. Tone deafness is also known variously as amusia, tune deafness, "tin ear", dysmelodia and dysmusia.
Read “Tone deafness” on English Wikipedia
Read “音痴” on Japanese Wikipedia
Read “Tone deafness” on DBpedia

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