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Synonyms

credibility

American  
[kred-uh-bil-i-tee] / ˌkrɛd əˈbɪl ɪ ti /
Sometimes credibleness

noun

  1. the quality of being believable or worthy of trust.

    After all those lies, his credibility was at a low ebb.


credibility British  
/ ˌkrɛdɪˈbɪlɪtɪ /

noun

  1. the quality of being believed or trusted

"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

  • noncredibility noun

Etymology

Origin of credibility

First recorded in 1570–80; from Late Latin crēdibilitās, equivalent to Latin crēdibili(s) credible ( def. ) + -tās -ty 2 ( def. )

Explanation

You have credibility when you seem totally trustworthy or believable. You lose it when you start lying, cheating and acting rather shady. Credibility is a noun that speaks to plausibility or believableness, so the star witness at your trial or the person writing your recommendation letter should certainly have it. Be careful though, because someone with credibility isn't necessarily telling the truth. As any con man or politician can tell you, credibility can easily come from nothing more than a confident smile.

Keep Reading on Vocabulary.com

Vocabulary lists containing credibility

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.

“He brought some instant credibility in and outside of the organization,” said Guelli.

From The Wall Street Journal • Apr. 15, 2026

“People are jealous of the credibility they’ve created, but that’s not something a marketing budget can buy,” Gastman added.

From Los Angeles Times • Apr. 15, 2026

For years, the network has thrived by aligning itself with the emotional and ideological currents of its audience while maintaining just enough institutional credibility to shape those currents in return.

From Salon • Apr. 12, 2026

"So obviously to see that this person had been using my photo to sell his well-being programmes, they kind of took away the credibility of my story."

From BBC • Apr. 10, 2026

Well, Ralph’s credibility is out the window now.

From "Orphan Train" by Christina Baker Kline