inaudible
🇺🇸
/ɪnˈɔːdəbl/
🇬🇧
/ɪnˈɔːdəbl/
adjective
R
too quiet or soft to be heard
The teacher's voice was so soft that it became inaudible to the students in the back of the room.
老师的声音太轻了，以至于后排的学生听不见。
translation
听不见的