1.Definition: a feeling of lack of interest or energy

Related Noun(s):languor, listlessness

Category: Feelings

2.Definition: a state of comatose torpor (as found in sleeping sickness)

Related Noun(s):lethargy, sluggishness

Category: General

3.Definition: weakness characterized by a lack of vitality or energy

Related Noun(s):inanition, lethargy, slackness

Category: General