释义 
		[ kuh m-pley -suh n-see ] SHOW IPA 
/ kəmˈpleɪ sən si / PHONETIC RESPELLING 
SEE SYNONYMS FOR complacency  ON THESAURUS.COM
noun,  plural  com·pla·cen·cies.  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. 
Archaic .  friendly civility; inclination to please; complaisance.   a civil act.  Also 
com·pla·cence  [kuh m-pley -suh ns].   /kəmˈpleɪ səns/.  Origin of complacency  From the Medieval Latin word complacentia,  dating back to 1635–45. See complacent, -cy
OTHER WORDS FROM complacency non·com·pla·cence,  noun non·com·pla·cen·cy,  noun,  plural  non·com·pla·cen·cies. o·ver·com·pla·cence,  noun o·ver·com·pla·cen·cy,  noun Words nearby complacency  compilation, compilation film, compile, compiled language, compiler, complacency , complacent, complain, complainant, complaint, complaisance
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for complacency In one sentence, he asserts: “Panic is worse than complacency .”
The Sham, Scaremongering Guide to Ebola | Abby Haglage| November 20, 2014| DAILY BEAST
A psychiatrist who attended one such conference blamed television for the complacency .
The Myth of the Central Park Five | Edward Conlon| October 19, 2014| DAILY BEAST
But judging by our complacency , you would be forgiven for not knowing this.
Western Jihadists in Syria Threaten to Bring Their War Back Home | Maajid Nawaz| April 27, 2014| DAILY BEAST
They went out of their way to tell me how such programs “breed” complacency , laziness, and—wait for it—dependency.
When Did ‘Dependence’ Become a Dirty Word? | Gene Robinson| April 6, 2014| DAILY BEAST
This is a film that takes apart your complacency  as surely as this alien world destroys Thomas Newton.
‘The Man Who Fell to Earth’ Is a Classic Twice over—as a Movie and a Novel | Malcolm Jones| February 9, 2014| DAILY BEAST
He was enraged at her blindness to Pete Cheever's duplicity or her complacency  with it.
We Can't Have Everything | Rupert Hughes
The children of his tenants, and neighbours were objects of his generosity and complacency .
Memoirs of General Lafayette | Lafayette
He laughed, and continued with the good humor men of politics use as a cloak but which in his case was the complacency  of success.
The Wasted Generation | Owen Johnson
Overconfidence and complacency  are among our deadliest enemies.
State of the Union Addresses of Franklin D. Roosevelt | Franklin D. Roosevelt
Finally, we turned in to our pits for the night with some complacency , each eight men furnishing their own sentry.
The Defence of Duffer's Drift | Ernest Dunlop Swinton
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British Dictionary definitions for  complacency noun  plural  -cencies  or  -cences  a feeling of satisfaction, esp extreme self-satisfaction; smugness 
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
Words related to complacency satisfaction, smugness