Dictionary and Thesaurus

Definition of Lethargy

• (n.) Morbid drowsiness; continued or profound sleep, from which a person can scarcely be awaked.
• (n.) A state of inaction or indifference.
• (v. t.) To lethargize.

Synonyms of Lethargy

• Lassitude
• Sluggishness
• Inanition
• Lassitude
• Slackness
• Languor
• Sluggishness
• Phlegm
• Flatness

Antonyms of Lethargy

Homophones of Lethargy