complacent
Americanadjective
-
pleased, especially with oneself or one's merits, advantages, situation, etc., often without awareness of some potential danger or defect; self-satisfied.
The voters are too complacent to change the government.
- Synonyms:
- untroubled, unbothered, smug
-
agreeable and eager to please.
adjective
-
pleased or satisfied, esp extremely self-satisfied
-
an obsolete word for complaisant
Other Word Forms
Etymology
Origin of complacent
First recorded in 1650–60; from Latin complacent- (stem of complacēns, present participle of complacēre “to take the fancy of, please,” equivalent to com- “with, together, completely” ( see com-) + placēre “to seem good” ( see please)
Compare meaning
How does complacent compare to similar and commonly confused words? Explore the most common comparisons:
Explanation
Someone who is complacent has become overly content — the junk-food-eating couch potato might be feeling complacent about his health. The literal meaning of this word's Latin root is "very pleased," but even though complacent people may seem pleased with themselves, we are rarely pleased with them. They are unconcerned by things that should concern them, and they may neglect their duties. A complacent person might be heard saying, "Ehh, don't worry about it!" — when there really is something to worry about.
Vocabulary lists containing complacent
Grade 10, List 1
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
ASVAB Word Knowledge
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
The New SAT: Words to Capture Tone
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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.
In other words, investors shouldn’t be complacent, because the risk of a major shift in both countries’ interest-rate environments and a painful unwind of the carry trade is still higher than usual.
From MarketWatch • Jul. 2, 2026
With the U.S. stock market pushing ever higher, it is easy for investors to become complacent.
From MarketWatch • Jun. 30, 2026
Wiseman said Tuesday that Canada had become too complacent about its economy, over relying on trade with the U.S. to be the main engine of growth.
From The Wall Street Journal • Jun. 15, 2026
“Investors have simply become increasingly complacent in their expectations of Nvidia’s outsized execution, making almost any degree of outperformance look like a normal course business rather than a catalyst for a positive re-rating,” Acree wrote.
From Barron's • May 22, 2026
He wished she would not be so complacent about it.
From "Half of a Yellow Sun" by Chimamanda Ngozi Adichie
![]()
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.