weariness

长时间的工作后，她的脸上明显流露出疲惫。

After hours of work, ___weariness was clearly visible on her face.

听完第五次重复的讲座后，他脸上明显露出了厌倦的神情。

After hearing the same lecture for the fifth time, his ___weariness was clearly visible on his face.