trustworthy

American

[truhst-wur-thee] / ˈtrʌstˌwɜr ði /

adjective

deserving of trust or confidence; dependable; reliable.

The treasurer was not entirely trustworthy.

Synonyms:

faithful, honorable, honest, true

trustworthy British

/ ˈtrʌstˌwɜːðɪ /

adjective

worthy of being trusted; honest, reliable, or dependable

"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

Related Words

See reliable.

Other Word Forms

trustworthily adverb
trustworthiness noun
untrustworthily adverb
untrustworthy adjective

Etymology

Origin of trustworthy

First recorded in 1800–10; trust + worthy

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.

Annuities can also be used as part of Medicaid planning, if done with the guidance of a trustworthy attorney.

From MarketWatch • Mar. 26, 2026

“We’re working with OpenClaw builder Peter Steinberger to make self-certified agents, or claws, more trustworthy, scalable, and accessible to the world,” she added.

From The Wall Street Journal • Mar. 16, 2026

Pavlick leads ARIA, a National Science Foundation AI research institute at Brown focused on building trustworthy AI assistants.

From Science Daily • Mar. 2, 2026

"Advancing secure, trustworthy and robust AI is foundational to building trust and maximising societal and economic benefits," it said.

From Barron's • Feb. 21, 2026

He looked from me to Kevin, making no secret of the fact that he didn’t find us all that trustworthy.

From "Kindred" by Octavia Butler

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023