smug
Americanadjective
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contentedly confident of one's ability, superiority, or correctness; complacent.
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trim; spruce; smooth; sleek.
adjective
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excessively self-satisfied or complacent
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archaic trim or neat
Other Word Forms
Etymology
Origin of smug
First recorded in 1545–55; perhaps from Middle Dutch smuc “neat, pretty, nice”
Explanation
A smug person is self-satisfied. You can usually recognize someone who is pleased with himself by his smug little smile and self-righteous remarks. Smug is the opposite of modest and unsure. In cartoons, the smug character often walks around with his chest puffed out and his ego leading the way. “Too much good fortune can make you smug and unaware,” thought Rachel Field, the children’s author. What she means is that successes are appreciated much more when they don't come so often that you begin to feel entitled to them.
Vocabulary lists containing smug
The SAT: Words to Capture Tone, List 3
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The New SAT: Words to Capture Tone
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List 7
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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.
But while the Chinese may be right in their analysis, they shouldn’t be too smug about it.
From Salon • May 14, 2026
When I say good, I don’t mean smug or perfect.
From Slate • May 10, 2026
Volker Beck, president of the German-Israeli Society, labelled Steinmeier's comments on the war "grossly inappropriate" and said they displayed a "smug know-it-all attitude".
From Barron's • Mar. 24, 2026
Mr. Powell, smirking and smug, tells his life story to a visiting priest who drops by his cell for a last conversation.
From The Wall Street Journal • Feb. 19, 2026
When Oliver reentered his apartment, feeling as smug as a peacock with a full plume of feathers, he ran straight into Jessie.
From "The Vanderbeekers of 141st Street" by Karina Yan Glaser
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.