\ 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 Rather than being flat and smooth, the small landing site is littered with sand dunes, steep cliffs, boulders and small craters. Ashley Strickland, CNN, "The Perseverance rover is on its way to Mars. What's next?," 31 July 2020 This delightful feature unfolds at the perfect pace, as smooth and breezy as a ride with Mel himself. oregonlive, "The Oregonian/OregonLive wins 4 Society of Features Journalism awards," 9 July 2020 This body lotion features cocoa butter as the star ingredient to keep skin looking smooth and hydrated. Tiffany Dodson, SELF, "26 Black-Owned Beauty Brands You Need On Your Radar," 8 July 2020 The transmission is a quick and smooth eight-speed dual-clutch automatic. cleveland, "Mercedes’s new small SUV a winner, despite goofy driver-assist feature," 4 July 2020 The road through this crisis has been anything but smooth. Lindsey Mcclave, The Courier-Journal, "'Running a restaurant isn't glamorous.' How 3 Camp Taylor restaurants see their new normal," 30 June 2020 Unlike that of AirPods and AirPods Pro, this is flattened and cylindrical, rather than smooth and rounded. Benjamin Levin, CNN Underscored, "These Veho True Wireless Earphones deliver on value at the cost of bass," 29 June 2020 My go-to products are body scrubs and exfoliating peel pads that help keep my skin smooth and bump-free. Karina Hoshikawa,, "I Tried The Exfoliating Washcloths That Went Viral On Amazon," 26 June 2020 The suspension proves generally firm yet smooth and absorbent. Larry Griffin, Car and Driver, "Tested: 1992 Lexus SC400 Rewrites the Sport Coupe Formula," 26 June 2020 Recent Examples on the Web: Verb Booker and a few others decided to try to speak with the men to smooth things over. Sarah Midkiff,, "Vauhxx Booker Says Five White Men Tried To Lynch Him. Why Didn’t Indiana Police Do Anything?," 9 July 2020 This new pairing could ultimately smooth the road ahead for an entire industry battling for attendance, television ratings and sponsorship. Creg Stephenson |, al, "NASCAR at Indy: Big Machine Hand Sanitizer 400 free live stream, TV info, how to watch online," 5 July 2020 That longer barrel will give you a touch more velocity and accuracy, as well as smooth out the recoil a bit. Tyler Freel, Outdoor Life, "The 8 Best Hunting Guns that Double as Self-Defense Firearms," 29 June 2020 Calvin Klein Twist-Front Tummy-Control One-Piece Swimsuit is a chic twist that plays up your curves in this one-piece, a stylish look with tummy control that helps smooth your silhouette. Mark Heim |, al, "Macy’s Black Friday in July sale offers up to 75 percent off, includes huge daily deals," 8 July 2020 The recent increases pushed up the rolling seven-day average for new cases – a method to look at the trends to smooth out for issues such as delays in lab or paperwork – to 987 a day over the last week, up from 381 on June 12. Rich Exner, cleveland, "Mapping Ohio’s 57,956 coronavirus cases; latest trends include a record high for rolling average of new cases," 6 July 2020 He was then allegedly asked to smooth out the situation and apologize to the recruiter. Kaya Yurieff, CNN, "Black Facebook employee and two job applicants file EEOC complaint alleging discrimination," 2 July 2020 Years later, the brand launched its mega-popular Ultra HD Invisible Cover Foundation, which is specifically formulated to smooth out skin being filmed using 4K technology. Sharon Brandwein, USA TODAY, "11 inclusive makeup brands with products for all skin tones," 1 July 2020 Domestic conflicts have proved harder to smooth over and millions of Ethiopians remain internally displaced. Max Bearak, Washington Post, "Ethiopia protests spark Internet shutdown and fears of high death toll after popular singer killed," 1 July 2020 Recent Examples on the Web: Noun Mix in about 3-4 cups of the bread flour until smooth, beat on medium speed (or whisk) for a few minutes until strands form and the dough wants to pull away from the sides of the bowl. David Lindquist, Indianapolis Star, "Baking in the time of coronavirus: Bread is hot topic at home and away," 16 Apr. 2020 For lighter hair in need of toning, or any shade that could use some extra vibrancy, the hairstylist Kristin Ess’s Signature Hair Gloss seals and smooths hair cuticles to boost shine and lock in color. Caitie Kelly, New York Times, "The T List: Five Things We Recommend This Week," 9 Apr. 2020 The drag is buttery-smooth, with no hesitation at startup and no unevenness anywhere in the process. Joe Cermele, Outdoor Life, "Tackle Test: The Best New Fishing Rods and Reels for 2020, Ranked and Rated," 23 Mar. 2020 Vitamin E floods your skin with moisture while the 100% cruelty-free concealer smooths and brightens the appearance of dark circles. Nicole Saunders, CNN Underscored, "The 20 best under-eye concealers, according to celebrity makeup artists," 26 Dec. 2019 Although its handoff between gas and electric power is sometimes less-than-smooth, the powertrain is responsive around town and when pulling away from stoplights. Eric Stafford, Car and Driver, "2019 Honda Accord Hybrid vs. 2019 Toyota Camry Hybrid: Which Gas-Sipping Family Sedan Is Better?," 8 Jan. 2020 Your once smooth, shiny wood flooring may have become scratched and dull. Dallas News, "Spruce up your house for spring sale," 19 Jan. 2020 The most noticeable difference between the two powertrains is that the eTorque hybrid system smooths and quickens the V-6's stop-start system. Mike Sutton, Car and Driver, "Do the 2020 Jeep Wrangler's New Engines Improve the Icon?," 7 Jan. 2020 Shaped like a round brush, the Revlon hot air brush boasts ionic technology to combat frizz, leaving your hair silky smooth while locking in mega volume. Susan Brickell,, "The Best-Selling Air Dryer Brush with Over 13,000 Amazon Reviews Is 30% Off—But Only Until Tonight," 2 Dec. 2019

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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Time Traveler for smooth

Time Traveler

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

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Statistics for smooth

Last Updated

3 Aug 2020

Cite this Entry

“Smooth.” Dictionary, Merriam-Webster, Accessed 3 Aug. 2020.

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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

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