/ Thesaurus / S Synonyms of sluggishness Find synonyms for: Noun1. lethargy, lassitude, sluggishness, torpor, torpidityusage: a state of comatose torpor (as found in sleeping sickness)2. sluggishness, pace, rateusage: the pace of things that move relatively slowly; "the sluggishness of the economy"; "the sluggishness of the compass in the Arctic cold"3. languor, lethargy, sluggishness, phlegm, flatness, inactiveness, inactivity, inertiausage: inactivity; showing an unusual lack of energy; "the general appearance of sluggishness alarmed his friends"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language