/ Dictionary / Index S sleeveless: Meaning and Definition of Find definitions for: sleeve•less Pronunciation: (slēv'lis), [key] — adj. without sleeves. amounting to nothing; unprofitable; futile: a sleeveless errand. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sleeveless (Thesaurus) sleeve coupling sleevelet Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language