Added 10 October 2026
complacency
/kəmˈpleɪsənˌsiː/ noun
Latin root: complacentia Wiktionary
noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about complacency at Wordnik → Where our words come from →
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The feeling you have when you are satisfied with yourself.
his complacency was absolutely disgusting
Origin
Late Middle English complacence, from Late Latin complacentia. Compare French complaisance.
From Wiktionary, via Kaikki.org (CC BY-SA)