inaudibly
/ɪnˈɔdəbli/
adverb
- In a way that cannot be heard or is too quiet to be heard.
- She inaudibly tiptoed across the creaky floor to avoid waking the baby.
- The teacher spoke so inaudibly that the students in the back couldn't follow the lesson.
- He muttered inaudibly under his breath, so no one caught what he said.
Antonyms