\ ˈsmüt͟h How to pronounce smooth (audio) \

Definition of smooth

 (Entry 1 of 3)

1a(1) : having a continuous even surface
(2) of a curve : being the representation of a function with a continuous first derivative
(3) : having or being a short even coat of hair a smooth collie — compare rough, wirehaired
b : being without hair
c : glabrous a smooth leaf
d : causing no resistance to sliding
2 : free from difficulties or impediments the smooth course of his life
3 : even and uninterrupted in flow or flight
4 : excessively and often artfully suave : ingratiating a smooth operator
5a : serene, equable a smooth disposition
6a : not sharp or harsh a smooth sherry
b : free from lumps


smoothed; smoothing; smooths also smoothes

Definition of smooth (Entry 2 of 3)

transitive verb

1 : to make smooth
2a : to free from what is harsh or disagreeable : polish smoothed out his style
b : soothe
3 : to minimize (something, such as a fault) especially in order to allay anger or ill will his main job is to smooth over the friction that so often arises— Brian Crozier
4 : to free from obstruction or difficulty conciliation smoothed the way to an agreement
5a : to press flat smoothed down the folds of her dress
b : to remove expression from (one's face) : compose
6 : to cause to lie evenly and in order : preen a bird smoothing its feathers
7 : to free (a graph, a collection of data, etc.) from irregularities

intransitive verb

: to become smooth



Definition of smooth (Entry 3 of 3)

1 : a smooth part
2 : the act of smoothing
3 : a smoothing implement

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Other Words from smooth


smooth adverb
smoothly adverb
smoothness noun


smoother noun

Synonyms & Antonyms for smooth

Synonyms: Adjective

Synonyms: Verb

Antonyms: Adjective

Antonyms: Verb

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Choose the Right Synonym for smooth


level, flat, plane, even, smooth mean having a surface without bends, curves, or irregularities. level applies to a horizontal surface that lies on a line parallel with the horizon. the vast prairies are nearly level flat applies to a surface devoid of noticeable curvatures, prominences, or depressions. the work surface must be flat plane applies to any real or imaginary flat surface in which a straight line between any two points on it lies wholly within that surface. the plane sides of a crystal even applies to a surface that is noticeably flat or level or to a line that is observably straight. trim the hedge so it is even smooth applies especially to a polished surface free of irregularities. a smooth skating rink

easy, facile, simple, light, effortless, smooth mean not demanding effort or involving difficulty. easy is applicable either to persons or things imposing tasks or to activity required by such tasks. an easy college course facile often adds to easy the connotation of undue haste or shallowness. facile answers to complex questions simple stresses ease in understanding or dealing with because complication is absent. a simple problem in arithmetic light stresses freedom from what is burdensome. a light teaching load effortless stresses the appearance of ease and usually implies the prior attainment of artistry or expertness. moving with effortless grace smooth stresses the absence or removal of all difficulties, hardships, or obstacles. a smooth ride

suave, urbane, diplomatic, bland, smooth, politic mean pleasantly tactful and well-mannered. suave suggests a specific ability to deal with others easily and without friction. a suave public relations coordinator urbane implies high cultivation and poise coming from wide social experience. an urbane traveler diplomatic stresses an ability to deal with ticklish situations tactfully. a diplomatic negotiator bland emphasizes mildness of manner and absence of irritating qualities. a bland master of ceremonies smooth suggests often a deliberately assumed suavity. a smooth salesman politic implies shrewd as well as tactful and suave handling of people. a cunningly politic manager

Examples of smooth in a Sentence

Adjective They groomed the ski trail so it was smooth. The river rocks had been worn smooth by the water. Whisk the flour into the gravy until it is smooth. The milkshake was smooth and creamy. With the aid of observers, the election process was a smooth one. Our trip was smooth and uneventful. the smooth movements of a swimmer She has a nice, smooth golf swing. His new car has a smooth ride. Our flight was very smooth. Verb He smoothed his tie and headed out the door. The coin's date had been smoothed away over time. Smooth the cream on after your shower. Smooth the wax over the wood before polishing. She smoothed on some moisturizer before she put on her makeup. He smoothed ointment over the cut.
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Recent Examples on the Web: Adjective In a large bowl, beat cream cheese until smooth, about 3 minutes. Woman's Day Kitchen, Woman's Day, "Ghost Cupcakes," 12 Sep. 2019 The show: Since launching his solo career in 1996, Solís has become a superstar, using his smooth, powerful voice and music to enthrall fans. Joan Morris, The Mercury News, "10 awesome Bay Area date night ideas for fall," 9 Sep. 2019 Speaking of inputs, the Surface Pen is just as good as ever, silky smooth and responsive in everyday use. Wired, "It's a Very Good Time to Buy a Surface Pro 6," 28 Aug. 2019 So far, things have gone smoother than with their Baltimore Bike Share predecessor, but equity and safety issues raised during the pilot program remain. Oyin Adedoyin,, "A year after scooters first hit Baltimore’s streets, safety and equity concerns persist," 23 Aug. 2019 Paul Guenther’s transition to his first NFL defensive coordinator job couldn’t have been much smoother. Matt Kawahara,, "Raiders DC Paul Guenther eyes improvement after ‘hardest year’," 9 June 2019 If refrigerated, allow to come to room temperature for 30 minutes and beat with an electric mixer until smooth and creamy. Woman's Day Kitchen, Woman's Day, "Ghost Cupcakes," 12 Sep. 2019 The too-smooth megachurch pastor living in the shadow of the Mt. Helix cross. San Diego Union-Tribune, "Column: San Diego has a dark role in a new noir novel by Patrick Coleman," 12 Aug. 2019 Afterward, head to a sleeping room to relish in your new, baby-smooth skin. Kristin Braswell, USA TODAY, "A K-beauty lover makes a pilgrimage to Seoul, the capital of skincare and K-Pop," 23 July 2019 Recent Examples on the Web: Verb After a wave of backlash about its governance and proposed valuation, WeWork’s parent company is reportedly mulling reforms to set investors at ease and smooth the way for a successful initial public offering. Michelle Cheng, Quartz at Work, "How WeWork stacks up with the big IPOs of 2019 on gender balance," 11 Sep. 2019 The activity filter smooths things out for these lightweight tasks, keeping the CPU out of boost mode without harming overall or perceptible performance. Jim Salter, Ars Technica, "AMD improves real-world boost and idle on Ryzen 3000," 11 Sep. 2019 Some of these rocks are rough and can still draw blood; others are smoothed by time, rolling around in me, eroding. Jennifer Fliss, Washington Post, "When do I tell my partner about my past trauma?," 28 Aug. 2019 However, the confusion was evidently smoothed out because the ban was lifted just last month. Eamon Barrett, Fortune, "Amid Protests, Hong Kong’s Stock Exchange May Lose Chance at Alibaba Listing—Again," 21 Aug. 2019 In 2019, any rough spots would be smoothed out via computer, and that was true in 1988, too, but the animation for Who Framed Roger Rabbit still had to be mostly hand-drawn. Emily Todd Vanderwerff, Vox, "The artistry of the late Richard Williams, from Roger Rabbit to the Pink Panther," 20 Aug. 2019 Peony, turmeric, neem extracts, topical caffeine, and botanicals are the anti-inflammatory antioxidants found in this cream that will smooth fine lines and wrinkles by plumping and brightening the skin around your eyes. Maya Allen, Marie Claire, "Why Avya Skincare's Brightening Eye Cream Is Worth It," 31 July 2019 No—to smooth businessmen like Karl Stromberg in The Spy Who Loved Me. André Millard, Smithsonian, "In Battles of Man Versus Machine, James Bond Always Wins," 12 July 2019 But tensions were smoothed over after city officials showed labor groups that last time the city passed a $310 million affordable housing bond, in 2015, almost 100% of the work went to unionized workers. Trisha Thadani,, "Largest affordable housing bond in SF’s history headed to November ballot," 9 July 2019 Recent Examples on the Web: Noun The light-weight formula smooths and shines tresses while controlling frizz, making it a must-have for living our sleekest hot girl life. Jennifer Ford, Essence, "Megan Thee Stallion, Cardi B, and Normani Use This $3 Product On Their Hair," 27 Aug. 2019 His bushy hair was replaced by a smooth buzz cut — and a bill headed to the governor’s desk. Sophie Carson, Milwaukee Journal Sentinel, "Lawmaker who vowed no haircuts until sign language interpreter bill passed finally gets buzz cut as deaf community cheers," 2 July 2019 Filling 1 1/2 cups peanut butter (smooth recommended but crunchy is also fine) For the French toast: In a bowl, whisk egg yolks and sugar until sugar dissolves; mix in cream, vanilla and rum. San Diego Union-Tribune, "Decadent French toast recipes from Breakfast Republic’s chef," 13 Aug. 2019 This luxe oil smooths hair and splits, all while helping to protect tresses from UV rays. Essence, "Dope Stuff On My Desk: Hot Curls & Hot Colors!," 2 Aug. 2019 Loquat leaf delivers antioxidants, which both prevent sun damage in real time (by neutralizing free radicals) and repair skin overnight, while Japanese wild rose smooths skin texture and minimizes the look of my otherwise gigantic pores. Deanna Pai, Condé Nast Traveler, "The Multitasking Sunscreen I Never Leave Home Without," 22 July 2019 Compared to the diamond-like faceting of the F-117A, Tacit Blue featured smooth, flowing shapes that ended in sharp edges. Kyle Mizokami, Popular Mechanics, "The Very Real Aircraft of Area 51," 19 July 2019 In addition to making your hair crazy smooth, the spray also works as a heat protectant and to keep your hair impervious to the effects of humidity. Jihan Forbes, Allure, "The IGK Good Behavior Smoothing Spray Is Like a Keratin Treatment in a Bottle," 28 July 2018 After the joint compound has dried (usually at least two hours), remove the screws and sand the surface of the patch smooth. Peter Martin, Popular Mechanics, "How to Fix a Hole in Drywall," 7 Nov. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'smooth.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of smooth


before the 12th century, in the meaning defined at sense 1a(1)


15th century, in the meaning defined at transitive sense 1


15th century, in the meaning defined at sense 1

History and Etymology for smooth


Middle English smothe, from Old English smōth; akin to Old Saxon smōthi smooth

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Statistics for smooth

Last Updated

6 Nov 2019

Time Traveler for smooth

The first known use of smooth was before the 12th century

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More Definitions for smooth


How to pronounce smooth (audio)

English Language Learners Definition of smooth

 (Entry 1 of 2)

: having a flat, even surface : not rough : not having any bumps, ridges, or uneven parts
of a liquid mixture : not having any lumps : mixed together so there are no lumps
: happening or done without any problems



English Language Learners Definition of smooth (Entry 2 of 2)

: to make (something) smooth
: to remove problems or difficulties from a situation
: to spread (something) over a surface (such as your skin) : to apply (something) by rubbing it on a surface


\ ˈsmüt͟h How to pronounce smooth (audio) \
smoother; smoothest

Kids Definition of smooth

 (Entry 1 of 2)

1 : not rough or uneven in surface a smooth board
2 : not hairy a smooth face
3 : free from difficulties or things in the way a smooth path a smooth journey
4 : moving or progressing without breaks, sudden changes, or shifts a smooth stream smooth speech
5 : appearing to be friendly and flattering without really meaning it a smooth talker

Other Words from smooth

smoothly adverb
smoothness noun


smoothed; smoothing

Kids Definition of smooth (Entry 2 of 2)

1 : to remove bumps, lumps, or wrinkles : make smooth
2 : to free from trouble or difficulty Pioneers smoothed the way for us.


\ ˈsmüt͟h How to pronounce smooth (audio) \

Medical Definition of smooth

: forming or being a colony with a flat shiny surface usually made up of organisms that form no chains or filaments, show characteristic internal changes, and tend toward marked increase in capsule formation and virulence used of dissociated strains of bacteria — compare rough

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More from Merriam-Webster on smooth

Thesaurus: All synonyms and antonyms for smooth

Rhyming Dictionary: Words that rhyme with smooth

Spanish Central: Translation of smooth

Nglish: Translation of smooth for Spanish Speakers

Britannica English: Translation of smooth for Arabic Speakers

Comments on smooth

What made you want to look up smooth? Please tell us where you read or heard it (including the quote, if possible).


meddlesome, informal, or unofficial

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