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

• reliable
• responsible
• safe
• true

Examples of trustworthy in a Sentence

a trustworthy bodyguard who would never blab to the tabloids

Recent Examples on the Web

One thing that is in your control is having a trustworthy collection of travel bags. —Rachel Trujillo, Travel + Leisure, 9 Sep. 2025

The scientist aims to find out how the fuel will act in different conditions, ranging from remote locations to space, so that it can be used in a safe and trustworthy fashion. —Abhishek Bhardwaj, Interesting Engineering, 9 Sep. 2025

The models still don’t have an inherent understanding of the difference between truth and fiction, no sense of which sources are more trustworthy than others, and no grounding of its knowledge in real world experience. —Jeremy Kahn, Fortune, 9 Sep. 2025

Embedding verification steps into workflows helps ensure that outputs are both trustworthy and audit-ready. —Marco Santos, Forbes.com, 9 Sep. 2025

Word History

First Known Use

1658, in the meaning defined above

Rhymes for trustworthy

• blameworthy
• newsworthy
• noteworthy
• praiseworthy
• unworthy
• creditworthy
• untrustworthy
• worthy

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