pensive
🇺🇸
/ˈpensɪv/
🇬🇧
/ˈpensɪv/
lost in thought, often because of sadness or concern
He was pensive as he stared out the window, deep in thought.
그는 창 밖을 응시하며 깊은 생각에 잠긴 채였다.