Drowsily; dozing off. A mimetic word describing the state of nodding off or dozing with eyes half-closed.
授業中、後ろの席の学生がうつらうつらしていた。
During class, the student in the back row was dozing off.
長い会議で彼はうつらうつらと居眠りを始めた。
In the long meeting he began to nod off drowsily.
夜行バスで窓にもたれてうつらうつらしていると、目的地に着いた。
Leaning against the window on the night bus and dozing off, I arrived at my destination.