Main entry: phlegm, lethargy, languor, sluggishness, flatness
Definition: inactivity; showing an unusual lack of energy
Usage: the general appearance of sluggishness alarmed his friends
Main entry: inanition, lethargy, lassitude, slackness
Definition: weakness characterized by a lack of vitality or energy
Main entry: lethargy, lassitude, sluggishness
Definition: a state of comatose torpor (as found in sleeping sickness)