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Synonyms

trustworthiness

American  
[truhst-wur-thee-nis] / ˈtrʌstˌwɜr ði nɪs /

noun

  1. the quality of being deserving of trust or confidence; dependability; reliability.

    We look for students who exhibit the highest ethical standards, as demonstrated by honesty, trustworthiness, and high moral character.


Etymology

Origin of trustworthiness

trustworthy ( def. ) + -ness ( def. )

Explanation

Trustworthiness is the quality of a person or a thing that inspires reliability. If you want a pet known for its trustworthiness, choose a loyal and obedient dog. People or things can be described with the adjective trustworthy, and when you add the suffix -ness to it, you make the word into a noun describing the quality or trait of being trustworthy. A person can be known for trustworthiness in keeping promises, and a newspaper can be worthy of trust for correct reporting.

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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.

See Examples For:

The same goes for securities brokers — “The slightest doubt as to the trustworthiness of a broker’s word or commitment would put him out of business overnight.”

From Los Angeles Times Jun. 25, 2026

Beyond the dubious and prejudicial methodology, the poll was conducted online, which further undermines its trustworthiness.

From Salon Apr. 13, 2026

We have evolved to view linguistic fluency as a proxy for intelligence, and engagement and helpfulness as indicators of trustworthiness.

From The Wall Street Journal Mar. 20, 2026

She says that this safety-focus lives on into adulthood, which means that Finns value trustworthiness more than most.

From BBC Mar. 18, 2026

“Yeah, you’re right!” said Harry, and he felt even more cheered at the thought that Dumbledore had had some reservations, however faint, about Snape’s trustworthiness.

From "Harry Potter and the Deathly Hallows" by J.K. Rowling

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