vacuously
🇺🇸
/ˈvækjuəsli/
🇬🇧
/ˈvækjuəsli/
in a way that shows no sign of intelligence or sensitive feelings
She nodded vacuously, not really understanding what was being said.
그녀는 막연하게 고개를 끄덕였고, 사실 무슨 말인지 제대로 이해하지 못했다.