What is the meaning of lethargy?

A state of comatose torpor (as found in sleeping sickness.
- synonyms: lassitude, sluggishness
Weakness characterized by a lack of vitality or energy.
- synonyms: inanition, lassitude, slackness
Inactivity; showing an unusual lack of energy.
- usage: "the general appearance of sluggishness alarmed his friends"
- synonyms: languor, sluggishness, phlegm, flatness

|15 years ago|1.6k views|share |citing

APA	WordNet. (2010). lethargy. Retrieved September 22, 2026, from http://smartdefine.org/lethargy/definitions/1245123
Chicago	WordNet. 2010. "lethargy" http://smartdefine.org/lethargy/definitions/1245123 (accessed September 22, 2026).
Harvard	WordNet 2010, lethargy, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/lethargy/definitions/1245123>.
MLA	WordNet. "lethargy" 23 October 2010. Web. 22 September 2026. <http://smartdefine.org/lethargy/definitions/1245123>

Alternative definitions by