sternly
🇺🇸
/ˈstɜːrnli/
🇬🇧
/ˈstɜːnli/
in a strict and serious manner
The teacher spoke sternly to the students when they were being noisy.
先生は生徒たちが騒音を立てていたときに厳しく話しかけた。
in a tough or challenging way
The team was sternly tested by their opponents.
そのチームは相手チームによって厳しく試されました。