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Showing results for untrustworthy. Search instead for untrustworth.
Definitions

untrustworthy

ADJECTIVE
not dependable, unfaithful
Synonyms
STRONGEST
deceitful dishonest disloyal false irresponsible treacherous unreliable unsafe
STRONG
untrusty
WEAK
capricious conniving crooked devious dubious fair-weather faithless fickle fink fly-by-night guileful questionable shady sharp shifty slippery sneaky tricky trustless two-faced two-timing unassured undependable unsure untrue
Antonyms
STRONGEST
faithful frank harmless honest loyal open reliable responsible true trustworthy truthful
WEAK
dependable

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

Americans also think A.I. is untrustworthy as a tool.

From Slate • Dec. 26, 2025

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