Definitions

1. verb

to make or become listless and lacking in energy or enthusiasm

“Her lack of motivation caused her to lethargize through the entire day.”

2. verb

to cause or induce a state of inactivity or listlessness

“The hot sun caused people to lethargize on the beach.”

3. noun

the state of being listless and lacking in energy or enthusiasm

“After a few days of illness, she was in a lethargic state.”