vacantly
🇺🇸
/ˈveɪkəntli/
🇬🇧
/ˈveɪkəntli/
in a way that shows no thought or attention
He sat there, vacantly staring out the window.
그는 거기 앉아 창 밖을 빈둥거리며 쳐다보고 있었다.