1
mal oído;dureza de oído;torpeza;falta de sensibilidad;sordera;sordo;sordomudo
1
tone deafness;amusia;having no ear for music
あいつ、自分が音痴だってこと知らないんだよ。
He doesn't realise that he's tone deaf.
2
having no sense of (e.g. direction);being hopeless when it comes to (e.g. computers);-illiterate