boredom

He started drawing sketches in his notebook to escape the boredom of the rainy afternoon.

(Chinese) 他开始在笔记本上画素描，以逃避这个下雨下午的无聊感。

The children’s boredom during the long car ride led to frequent arguments in the backseat.

(Chinese) 长途乘车过程中孩子们的无聊导致后座频繁发生争吵。