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

Related Noun(s):lassitude, lethargy

Category: General

2.Definition: inactivity; showing an unusual lack of energy

"The general appearance of sluggishness alarmed his friends"

Related Noun(s):flatness, languor, lethargy, phlegm

Category: General

3.Definition: the pace of things that move relatively slowly

"The sluggishness of the economy", "The sluggishness of the compass in the Arctic cold"

Category: General