adjective
untrustworthy
uhn-TRUHST-wur-thee
adjective
1
Not deserving of trust; likely to lie, cheat, or let people down.
"He'd been caught lying so often that colleagues saw him as untrustworthy."
"The website flagged the source as untrustworthy."
How to Use Untrustworthy
Learner’s notesIn plain EnglishSomeone or something you can't rely on to be honest or reliable.
Common mistake
Don't confuse with "untrusting" — untrustworthy describes the person/thing being judged, untrusting describes the one doing the judging.
Easily confused with
untrusting
Word Forms
more untrustworthy comparative, untrustworthier comparative, most untrustworthy superlative, untrustworthiest superlative
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He'd been caught lying so often that colleagues saw him as _____.
Etymology
From un- (\"not\") plus trustworthy.