thoughtlessly
🇺🇸
/ˈθɔːtləsli/
🇬🇧
/ˈθɔːtləsli/
acting without thinking about the consequences or the feelings of others
She thoughtlessly threw the ball, hitting the window and breaking it.
그녀는 생각하지 않고 공을 던져서 창문을 깨뜨렸다.