untrustworthy
Britishadjective
-
not worthy of being trusted
untrustworthy witnesses
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.
This flies in the face of all we know about its inner workings: AI can’t think, doesn’t have a mind and, in fact, is inherently untrustworthy.
From The Wall Street Journal • Mar. 20, 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
According to analysts, risks to stablecoins include an issuer deemed untrustworthy or the threat of hacking.
From Barron's • Nov. 10, 2025
Technology companies and their leaders were labeled completely untrustworthy by 58% of those surveyed.
From Los Angeles Times • Jul. 10, 2025
If there’s someone untrustworthy around, it’s supposed to light up and spin.
From "Harry Potter And The Prisoner Of Azkaban" by J.K. Rowling
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.