Longman Dictionary of Contemporary English - mistrust

~1 n the feeling that you cannot trust someone, especially because you think they may treat you unfairly or dishonestly + of  (He had a deep mistrust of the legal profession.)  (- compare distrust1) ~2 v to not trust someone, especially because you think they may treat you unfairly or dishonestly  (As a very small child she had learned to mistrust adults.)  (- compare distrust2) - mistrustful adj  (Some people are very mistrustful of computerised banking.) - mistrustfully adv