distrustful
I'm always very distrustful of any product that makes such extravagant claims.
You want to make sure that your children know how to stay safe but at the same time you don't want to make them distrustful of everyone they meet.
She was distrustful of the media and reluctant to be photographed.

SMART Vocabulary: related words and phrases

Trusting and not trusting
(you can) depend on/upon itidiom
accept/take something on faithidiom
bank
bank on someone/something
believe
believe in something
distrust
distrustful
distrustfully
have faith!idiom
I wouldn't trust someone as far as I could throw themidiom
mistrustfully
non-confidence
not trust someone an/one inchidiom
put/place your faith in something/someoneidiom
reliance
turn to someone/something
untrusting
untrustworthiness
untrustworthy