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Synonyms

untrustworthy

British  
/ ʌnˈtrʌstˌwɜːðɪ /

adjective

  1. not worthy of being trusted

    untrustworthy witnesses

"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

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.

See Examples For:

You can interview people, you can get court documents—you have to get court documents, because these people can be so untrustworthy.

From Slate ● May 7, 2026

Are these the kinds of important tasks you want to give a person who has already shown themselves to have bad judgment at best, and to be untrustworthy at worst?

From MarketWatch ● Feb. 13, 2026

When GPS has become so untrustworthy we need the help of quantum physics.

From The Wall Street Journal ● Nov. 23, 2025

According to analysts, risks to stablecoins include an issuer deemed untrustworthy or the threat of hacking.

From Barron's ● Nov. 10, 2025

“Why would our Nightingale do that? Tell me why he is angry with you. Why are you untrustworthy and dangerous?”

From "The Marvels" by Brian Selznick

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