• synonyms


adjective, sleek·er, sleek·est.
  1. smooth or glossy, as hair, an animal, etc.
  2. well-fed or well-groomed.
  3. trim and graceful; finely contoured; streamlined: a sleek sports car.
  4. smooth in manners, speech, etc.; suave.
  5. cleverly or deceitfully skillful; slick: a sleek confidence man.
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Origin of sleek1

First recorded in 1580–90; variant of slick1
Related formssleek·ly, adverbsleek·ness, noun


Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for sleeker


  1. smooth and shiny; polished
  2. polished in speech or behaviour; unctuous
  3. (of an animal or bird) having a shiny healthy coat or feathers
  4. (of a person) having a prosperous appearance
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verb (tr)
  1. to make smooth and glossy, as by grooming, etc
  2. (usually foll by over) to cover (up), as by making more agreeable; gloss (over)
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Derived Formssleekly, adverbsleekness, nounsleeky, adjective

Word Origin

C16: variant of slick
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for sleeker



1580s, variant of Middle English slike (see slick (adj.)). Originally of healthy-looking animal hair; applied to persons 1630s, with sense of "plump and smooth-skinned." Figurative meaning "slick, fawning, flattering" is from 1590s.

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"make sleek," mid-15c., a variant of slick (v.). Related: Sleeked; sleeking.

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Online Etymology Dictionary, © 2010 Douglas Harper