untrusting
un trust ing |ˌənˈtrəstiNG ənˈtrəstɪŋ | ▶adjective not tending to believe in other people's honesty or sincerity; suspicious.
un |trust ¦ing |ʌnˈtrʌstɪŋ | ▶adjective not tending to believe in other people's honesty or sincerity; suspicious.