/ Dictionary / Index S sluggish: Meaning and Definition of Find definitions for: slug•gish Pronunciation: (slug'ish), [key] — adj. indisposed to action or exertion; lacking in energy; lazy; indolent: a sluggish disposition. not acting or working with full vigor, as bodily organs: a sluggish liver. slow to act or respond: a sluggish car engine. moving slowly, or having little motion, as a stream. slow, as motion. slack, as trade, business, or sales. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sluggish (Thesaurus) slugging average sluice Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language