\ 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 For some Roadrunners, the transition has been smooth. Greg Luca,, "UTSA football continuing to forge ahead despite uncertain future," 10 May 2020 The process hasn’t been smooth as state officials have navigated election laws and the need to protect citizens and poll workers from the coronavirus. Time, "Ohio's Vote-by-Mail Primary Is the First Major Election Test in the Age of Coronavirus," 28 Apr. 2020 When shooting handheld, the five-axis optical image stabilization will keep down the shakes so every shot is smooth. Popular Science, "Video cameras for indie film directors, home video creators, and Youtubers," 28 Apr. 2020 Cornelius said the process has been surprisingly smooth. Ivana Hrynkiw |, al, "Greater Birmingham Humane Society feeds thousands of pets during pandemic," 25 Apr. 2020 This isn’t to say that the past year has been entirely smooth; along the way Nora and Clive have repeatedly been tempted to swoop in and help. Kate Julian, The Atlantic, "The Anxious Child," 14 Apr. 2020 An editor of the journal at the time, Robert Garisto, said coordination among thousands of members was surprisingly smooth. Michael J. Coren, Quartz, "High-energy particle physicists figured out video conferencing a long time ago," 3 Apr. 2020 However the path towards making remote health care a mainstay of medical practice is not entirely smooth. The Economist, "Guest comment: Eric Topol Telemedicine is essential amid the covid-19 crisis and after it," 31 Mar. 2020 The drag was remarkably smooth for a reel coming in at one-sixth the price of Shimano’s top-end Stradic. Joe Cermele, Outdoor Life, "Tackle Test: The Best New Fishing Rods and Reels for 2020, Ranked and Rated," 23 Mar. 2020 Recent Examples on the Web: Verb The collection is comprised of a cleanser ($38), serum ($85), and this cream (my absolute favorite), which work together or individually to soothe and smooth away your skin woes. Maya Allen, Marie Claire, "Why Kate Somerville's DeliKate Recovery Cream Is Worth It," 29 Apr. 2020 With a 380-lb-ft peak between 2000 and 4000 rpm and a redline at 6000, the 2.7 feels good and strong, and smooth at part throttle. Jared Gall, Car and Driver, "2020 Cadillac CT4-V Down on Power, But Not Out," 27 Apr. 2020 The high-rise style is made from a 50/50 spandex and nylon blend that simultaneously supports and smooths. Braelyn Wood,, "This Ashley Graham-Approved Activewear Brand Just Marked a Bunch of Leggings 40% Off," 25 Apr. 2020 The last ingredient, glycerin, acts as a hydrating and smoothing agent to offset the adverse effects of the harsher chemicals on people’s skin. Yvette Orozco, Houston Chronicle, "Pearland company hustles to fill hand sanitizer orders," 23 Apr. 2020 Kenga's daily routine was to cut, smooth and sell wood. Earl Nurse, Mia Foster And Aisha Salaudeen, CNN, "An off-road wheelchair offers freedom to Kenyans with disabilities," 21 Apr. 2020 Statistical models that smooth seasonal patterns and predict the pace at which business close and open could be rendered worthless. Paul Kiernan, WSJ, "March Jobs Report Unlikely to Show Full Impact of the Coronavirus Crisis," 29 Mar. 2020 Wrap both balls tightly in plastic wrap, smoothing out any air pockets, and set aside to rest at room temperature for 2 to 3 hours, or up to 24 hours in the refrigerator, before rolling. Erin Booke, Dallas News, "Craving pasta? Here’s how to make it when all you have is flour," 27 Mar. 2020 Dermatologist Sapna Palep tells Allure toners that hydrate and smooth out fine lines often contain antioxidants, amino acids, and hyaluronic acid. Audrey Noble, Allure, "The Best Toners for Every Skin Type," 16 Mar. 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

21 May 2020

Cite this Entry

“Smooth.” Dictionary, Merriam-Webster, Accessed 1 Jun. 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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