ennui

漫长的暑假让他感到无聊和倦怠，做什么都提不起兴趣。

The long summer vacation filled him with ___ennui, leaving him uninterested in any activities.

周五下午的办公室里弥漫着一种沉重的倦怠感。

A heavy ___ennui descended on the office during the slow Friday afternoon.

董事会开到第三个小时时，房间里的每张脸上都挂满了几乎肉眼可见的厌倦。

The third hour of the board meeting brought an almost visible ___ennui to every face in the room.