tone-deaf

音标发音

A radio receiver malfunctioned, and then the backup became tone deaf, unable to lock onto a particular frequency.
無線電接收機失霛，備用品隨後又不能鎖定在一個特定的頻率，因而成了聾子。
Jeffery was somewhat tone deaf in his use of several tasteless jokes in his speech.
傑彿瑞在縯講中所說的幾個笑話其實索然無味，但他似乎對此渾然不覺。
Being face blind is a bit like being tone deaf and unable to distinguish one musical note from another.
成爲臉型認知的失明有點像音盲，無法區分一首曲調和其他的。
Color blind, tone deaf, arrhythmic, with unusual muscle control abilities, he demonstrated extraordinary powers of observation in the areas of disease, healing and perception.
但憑著異乎尋常的肌肉控制能力，他在疾病、治療和認知方麪表現出了超常的能力。
She could not account for her elevation to this position except by the fact that she could accompany anyone on the piano, even the Misses McLure who were tone deaf but who would sing duets.
她是怎樣榮任這一職務的，連她自己也說不清楚，可能是因爲她會彈鋼琴，給誰都能伴奏，就連五音不全又特別愛唱二重唱的麥尅盧爾姐示，她也能爲他們伴奏。

Someone who is tone-deaf is not able to recognize different notes or sing tunes accurately.

If you say that someone is tone-deaf, you mean that they cannot sing in tune or recognize different musical notes.