trustworthy

adjective

trust·​wor·​thy ˈtrəst-ˌwər-t͟hē 

: worthy of confidence : dependable

a trustworthy guide

trustworthy information

trustworthily

ˈtrəst-ˌwər-t͟hə-lē 

adverb

trustworthiness noun

Synonyms

• calculable
• dependable
• good
• reliable
• responsible
• safe
• secure
• solid
• steady
• sure
• tried
• tried-and-true
• true
• trustable
• trusty

Examples of trustworthy in a Sentence

a trustworthy bodyguard who would never blab to the tabloids

Recent Examples on the Web

By being proactive in addressing open-source vulnerabilities, securing their training data and adopting rigorous supply chain monitoring, businesses can work to ensure their AI systems remain trustworthy and secure, better protecting themselves from the growing threats facing the AI ecosystem. —Steve Wilson, Forbes, 19 Dec. 2024

Our audience can count on dedication and consistent professionalism because NBC 7 is a trustworthy source for meaningful stories across all platforms. —Nbc San Diego, NBC News, 17 Dec. 2024

His community members describe him as trustworthy and honest. —The Hill, 12 Dec. 2024

The Christian holiday celebrates Christ’s birth, but there are no trustworthy records of the real date. —Reader Commentary, Baltimore Sun, 10 Dec. 2024

Word History

First Known Use

1658, in the meaning defined above

Kids Definition

trustworthy

adjective

trust·​wor·​thy ˈtrəst-ˌwər-t͟hē 

: deserving confidence : dependable

trustworthy information

a trustworthy babysitter

trustworthiness

-t͟hē-nəs

noun

Legal Definition

trustworthy

adjective

trust·​wor·​thy

: worthy of confidence

specifically : being or deriving from a source worthy of belief or consideration for evidentiary purposes

a trustworthy informant

trustworthiness noun