adj.昏睡的；困倦的；無生氣的

The hot weather made me feel lethargic. 炎熱的天氣使我昏昏欲睡。

In fact they looked tired and lethargic and old. 事實上,他們看上去很疲憊、困乏、衰老。

The bird became lethargic at noon. 這只鳥在中午時就不活潑了。

The weather made her listless and lethargic. 那天氣弄得她百無聊賴、無精打采。

adj.遲鈍的(不活潑的；冷淡的；困倦的；昏睡的)

adv.遲鈍地(不活潑地；冷淡地；困倦地；昏睡地)