Meaning of the word lethargy in English

What does lethargy mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

lethargy

US /ˈleθ.ɚ.dʒi/
UK /ˈleθ.ə.dʒi/

Noun

the feeling of having little energy or of being unable or unwilling to do anything:

Example:
Symptoms include loss of appetite, lethargy, and vomiting.