trustworthy
Americanadjective
adjective
Related Words
See reliable.
Other Word Forms
- trustworthily adverb
- trustworthiness noun
- untrustworthily adverb
- untrustworthy adjective
Etymology
Origin of trustworthy
Explanation
Trustworthy describes something you can believe in — it's completely reliable. Your favorite newspaper can be trustworthy — they always print the truth — and people can be trustworthy too. You only tell your secrets to a trustworthy friend. Breaking apart the word trustworthy gives you a clue to its meaning. It combines the common word trust, which describes something you can rely on, and the word worthy, which describes something that deserves respect. So something — or someone — that's trustworthy deserves your trust. In an election, you'll likely vote for the most trustworthy candidate because you believe she'll keep her promises. If you're trustworthy, that means you're reliable: you do what you say you're going to do.
Vocabulary lists containing trustworthy
Positive Words to Describe a Person
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Common Core Grades 7–8, List 7
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"Ode to the Table" by Pablo Neruda
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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.
“Structured data is the foundation of trustworthy AI.”
From The Wall Street Journal • Mar. 17, 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
At an AI summit hosted by New Delhi in February, 91 countries and international organisations called for "secure, trustworthy and robust" AI.
From Barron's • Feb. 28, 2026
“Senate faculty need full, trustworthy accounting of decisions and policies that caused the current campus budget deficit,” she said.
From Los Angeles Times • Feb. 17, 2026
“If you win, and prove yourself both skilled and trustworthy, my father has sworn to grant you your freedom. And, while you’re his Champion, you’ll receive a considerable salary.”
From "Throne of Glass" by Sarah J. Maas
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
