/ Dictionary / Index S slothful: Meaning and Definition of Find definitions for: sloth•ful Pronunciation: (slôth'ful, slōth'-), [key] — adj. sluggardly; indolent; lazy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: slothful (Thesaurus) sloth bear slot machine Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language