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complacency

American  
[kuhm-pley-suhn-see] / kəmˈpleɪ sən si /
Also complacence

noun

complacencies plural
  1. a feeling of quiet pleasure or security, often while unaware of some potential danger, defect, or the like; self-satisfaction or smug satisfaction with an existing situation, condition, etc.

  2. Archaic.

    1. friendly civility; inclination to please; complaisance.

    2. a civil act.


complacency British  
/ kəmˈpleɪsənsɪ /

noun

  1. a feeling of satisfaction, esp extreme self-satisfaction; smugness

  2. an obsolete word for complaisance

"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

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Etymology

Origin of complacency

From the Medieval Latin word complacentia, dating back to 1635–45. See complacent, -cy

Explanation

The word complacency is often hurled, in a rather scornful manner, at people who are unwilling to be political. It connotes a sense of ease and contentment with the status quo. It is a rare thing to hear the word complacency used in a purely positive way; there's always a sense of scolding to it. At best it's used to convey a person's satisfaction: "Oh? No one asked you to the prom? I've been asked three times," she said with complacency. More commonly, however, it takes on a political tone, as with large bodies of people who are unwilling to protest corruption because it doesn't touch them: "He preached and argued, but it was impossible to jostle the students from their complacency."

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Vocabulary lists containing complacency

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.

Complacency was the exact thing that general manager Kelly McCrimmon was looking to eliminate when he fired coach Bruce Cassidy 74 games into the regular season as the Golden Knights floundered.

From The Wall Street Journal • Jun. 5, 2026

Complacency is widespread among sophisticated institutional investors who should know better, too.

From MarketWatch • Jan. 14, 2026

Complacency for him was unthinkable when a majority of his fellow citizens were denied their fundamental liberties.

From Los Angeles Times • Mar. 10, 2025

Complacency would be misguided, as illustrated by the current mpox outbreak that is gathering steam.

From Salon • Aug. 16, 2024

Complacency, even when it was the complacency of self-defence, had its limits.

From The Justice of the King by Drummond, Hamilton

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