lethargy meaning and definition

LETHARGY noun

Definition of lethargy (noun)

1. a state of comatose torpor (as found in sleeping sickness)
   • synonyms: lassitude, sluggishness
2. weakness characterized by a lack of vitality or energy
   • synonyms: inanition, lassitude, slackness
3. inactivity; showing an unusual lack of energy
   • "the general appearance of sluggishness alarmed his friends"
   • synonyms: flatness, languor, phlegm, sluggishness