monotonously
🇺🇸
/məˈnɑːtənəsli/
🇬🇧
/məˈnɒtənəsli/
in a way that is always the same and not interesting
The teacher's voice droned monotonously through the classroom.
선생님의 목소리가 교실에서 단조롭게 울려 퍼졌다.