Dictionary.com
Thesaurus.com
Synonyms

complacent

American  
[kuhm-pley-suhnt] / kəmˈpleɪ sənt /

adjective

  1. 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
  2. agreeable and eager to please.


complacent British  
/ kəmˈpleɪsənt /

adjective

  1. pleased or satisfied, esp extremely self-satisfied

  2. an obsolete word for complaisant

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • complacently adverb
  • noncomplacent adjective
  • overcomplacent adjective
  • uncomplacent adjective

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” ( com- ) + placēre “to seem good” ( 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.

Keep Reading on Vocabulary.com

Vocabulary lists containing complacent

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.

Investors seem complacent about the long-term risks to markets and the economy from here, according to several professional investors who spoke with MarketWatch.

From MarketWatch • Apr. 7, 2026

But the Fed can’t be complacent, Schmid said.

From The Wall Street Journal • Mar. 31, 2026

Unlike the long-ago transition to the cloud, which undid many existing software firms, incumbents aren’t being complacent this time around.

From Barron's • Mar. 13, 2026

After a chastening start to the campaign, England surely won't be complacent.

From BBC • Mar. 6, 2026

She was extravagant with her pity, and complacent in her snug world.

From "Go Set a Watchman: A Novel" by Harper Lee