- deficient in alertness or activity;
"bullfrogs became lethargic with the first cold nights"
- The hot weather made me feel lethargic.炎热的天气使我昏昏欲睡。
- In fact they looked tired and lethargic and old.事实上,他们看上去很疲惫、困乏、衰老。
- The bird became lethargic at noon.这只鸟在中午时就不活泼了。
- The weather made her listless and lethargic.那天气弄得她百无聊赖、无精打采。