Bâng khuâng
In English To be lost in thought, to have a feeling of wistfulness or a gentle melancholy.
A feeling of being lost in thought, a sense of aimlessness, or a light melancholy, often associated with a moment of reflection or nostalgia.
Example
"Tôi cảm thấy bâng khuâng khi nhìn ra biển."
