The word "lethargy" in English means: A state of having very low energy with tiredness., A lack of enthusiasm and energy about doing anything..
The phonetic transcription of "lethargy" is /ˈleθədʒi/ in British English and /ˈleθərˌdʒi/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "lethargy": apathy, torpor.
Example usage of "lethargy": "His lethargy made him stay in bed all day, he felt so weak.". More examples on the page.