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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.

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

Participants were also asked to evaluate the retailer’s trustworthiness on a seven-point scale, with one being completely untrustworthy or manipulative and seven being totally trustworthy or sincere.

From The Wall Street Journal • Nov. 17, 2025

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

From Barron's • Nov. 10, 2025

They entered the postseason with an alarmingly untrustworthy bullpen, and that bullpen nearly blew a four-run lead in Game 2.

From Los Angeles Times • Oct. 6, 2025

The exclamation point made Rita seem untrustworthy, or, at the very least, insincere.

From "Flora & Ulysses: The Illuminated Adventures" by Kate DiCamillo