百无聊赖 [- - liáo lài]The time hangs heavy on one's hands.; bored stiff; bored to death; idle away time aimlessly; overcome with boredom; The day is long to him who knows not how to use it.; thoroughly bored; utterly bored [helpless]; very much bored:
•¶ 在百无聊赖中， 随手抓过一本书来， 读下去。 Out of sheer boredom I would pick up a book and read on and on.