Answer:
Dishonest
Explanation:
Dishonest is refer to that character of someone when that person lie to other person. This behavior is purposely that's why people lost faith in these type of people. Dishonest refer to that person who is not truthful and not trust worthy.
In the given context, though there is no proof of person duplicity, one can not trust that person due to his dishonest nature. This mean it is not good to trust someone who has past of dishonesty.
