listless /ˈlɪstlɪs/

• 1. 

  ADJ Someone who is listless has no energy or enthusiasm. 无精打采的

  例：

  He was listless and pale and wouldn't eat much.

  他无精打采，脸色苍白，而且食欲不振。

• 2. 

  listlessly ADV 无精打采地 [ADV with v]

  例：

  Usually, you would just sit listlessly, too hot to do anything else.

  通常，你只会无精打采地坐着，热得干不了别的事情。