/ Dictionary / Index S sleek: Meaning and Definition of Find definitions for: sleek Pronunciation: (slēk), [key] — -er, -est. smooth or glossy, as hair, an animal, etc. well-fed or well-groomed. trim and graceful; finely contoured; streamlined: a sleek sports car. smooth in manners, speech, etc.; suave. cleverly or deceitfully skillful; slick: a sleek confidence man. sleek Pronunciation: (slēk), [key] — v.t. to make sleek; smooth; slick: to sleek leather. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sleek (Thesaurus) sledgehammer sleekit Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language