/ Dictionary / Index S shiftless: Meaning and Definition of Find definitions for: shift•less Pronunciation: (shift'lis), [key] — adj. lacking in resourcefulness; inefficient; lazy. lacking in incentive, ambition, or aspiration. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: shiftless (Thesaurus) shift key shift lever Related Content Daily Word Quiz: miscreant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language