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Synonyms

sleek

1 American  
[sleek] / slik /

adjective

sleeker, sleekest
  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.

    Synonyms:
    slippery, shady, glib, shrewd, artful, smooth, refined, polished

sleek 2 American  
[sleek] / slik /
Also sleeken

verb (used with object)

  1. to make sleek; smooth; slick.

    to sleek leather.


sleek British  
/ sliːk /

adjective

  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

"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

verb

  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)

"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

Other Word Forms

  • sleeker noun
  • sleekly adverb
  • sleekness noun
  • sleeky adjective

Etymology

Origin of sleek1

First recorded in 1580–90; variant of slick

Origin of sleek2

First recorded in 1400–50; late Middle English sleken, variant of slick

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It looked incredible to my 20-year-old mind: sleek, uniform, very put-together.

From Salon • Mar. 19, 2026

Sinners star Li Jun Li turned heads in a sleek swirled Gaurav Gupta creation.

From BBC • Mar. 15, 2026

“Get stares, not glares,” the billboard reads, with a glamour shot of a sleek, silver Afeela 1.

From Los Angeles Times • Mar. 13, 2026

Ukraine's newly installed defence minister Mykhailo Fedorov waltzed on stage like a stand-up comedian to take the mic in front of journalists in Kyiv as a sleek slideshow zoomed across a map of the country.

From Barron's • Mar. 12, 2026

Unlike the other students, she didn’t get driven to school in a sleek black car.

From "Aru Shah and the End of Time" by Roshani Chokshi