mistrust

mistrust (http://definr.com/mistrust)

     n 1: doubt about someone's honesty [syn: misgiving, distrust,
           suspicion]
     2: the trait of not trusting others [syn: distrust, distrustfulness]
        [ant: trust]
     v : regard as untrustworthy; regard with suspicion; have no
         faith or confidence in [syn: distrust, suspect] [ant:
          trust, trust]