listless

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

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. listlesslyADV 无精打采地[ADV with v]

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。