百无聊赖
It's more pain to do nothing than something.
Have time hanging on one's hands.
Bored stiff.
eg：A busybody feels that it's more pain to do nothing than something whenever he is at leisure.
同义词：闲极无聊 Twiddle one's thumbs.
反义词：起早贪黑 Have too many irons in the fire.
