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