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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.

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

From Salon • Apr. 13, 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

The boards have been criticized in the past for allowing officers to remain with the department even when they are prohibited from handling evidence or working in the field due to concerns about trustworthiness.

From Los Angeles Times • Mar. 17, 2026

Meanwhile, participants who were only asked to submit a positive review ranked their likelihood of returning or recommending the market at 64 out of 100, while the trustworthiness score was 3.68 out of 7.

From The Wall Street Journal • Nov. 17, 2025

Three men did meet Holmes’s standard of trustworthiness.

From "The Devil in the White City" by Erik Larson