smooth·​en | \ ˈsmü-t͟hən How to pronounce smoothen (audio) \
smoothened; smoothening\ ˈsmü-​t͟hə-​niŋ How to pronounce smoothening (audio) , ˈsmüt͟h-​niŋ \

Definition of smoothen

intransitive verb

: to become smooth

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Synonyms & Antonyms for smoothen


even, flatten, level, plane, smooth


rough, roughen

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Examples of smoothen in a Sentence

smoothen the wood for the table thoroughly, or the legs will be uneven smoothen the edges of the two parts before trying to join them together

Recent Examples on the Web

Farther back, the body has been smoothened around the door handles, and the taillamps now have a three-dimensional treatment as seen on the new 2019 BMW X4. Steve Siler, Car and Driver, "2019 BMW 3-series Sedan Spied, This Time with a Look Inside," 23 Feb. 2018 Before embarking on his journey, Em recruited several big name artists to help smoothen out the ride. Carl Lamarre, Billboard, "Eminem's 'Revival': Five Things That Jump Out on First Listen," 15 Dec. 2017

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

First Known Use of smoothen

1635, in the meaning defined at transitive sense

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Time Traveler for smoothen

The first known use of smoothen was in 1635

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More from Merriam-Webster on smoothen

Thesaurus: All synonyms and antonyms for smoothen

Britannica English: Translation of smoothen for Arabic Speakers

Comments on smoothen

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


a topic to which one constantly reverts

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