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Synonyms

self-assurance

American  
[self-uh-shoor-uhns, self-] / ˈsɛlf əˈʃʊər əns, ˌsɛlf- /
self-assurance British  

noun

  1. confidence in the validity, value, etc, of one's own ideas, opinions, etc

"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

Etymology

Origin of self-assurance

First recorded in 1585–95

Vocabulary lists containing self-assurance

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.

Among the café-table clichés that experts and geopoliticians string together with astonishing self-assurance, one is particularly striking.

From The Wall Street Journal • Mar. 10, 2026

Hegseth flippantly employed villainous colloquialism – “they are toast and they know it,” “we play for keeps,” and “President Trump got the last laugh” – delivered with a combative tone that communicated masculine self-assurance.

From Salon • Mar. 10, 2026

It was a look of authority and self-assurance that even the Hollywood crowd that attended the games respected and admired.

From Los Angeles Times • Feb. 22, 2026

That said, you have self-assurance and agency and, at 55, it’s good to flex those muscles.

From MarketWatch • Nov. 27, 2025

As much as he admired Paul and was influenced by his views, Jim sometimes felt overwhelmed by his friend’s self-assurance and charisma.

From "Mountains Beyond Mountains" by Tracy Kidder and Michael French

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