lethargic

他显得很无精打采。

He appears to be ___lethargic.

热浪让整个办公室的人到了下午三点就已经昏昏欲睡，连最有精力的员工都在工位前打盹了。

The heat wave left the entire office ___lethargic, with even the most energetic employees dozing at their desks by mid-afternoon.

流感初愈的她浑身乏力，连伸手去拿床头柜上的水杯都做不到。

Recovering from the flu, she felt too ___lethargic to even reach for the glass of water on her bedside table.