adjective. ['ˌənɪmˈpiːtʃəbəl'] beyond doubt or reproach.
1. Adjective His record must be unimpeachable.
adjective. ['ˌənɪmˈpiːtʃəbəl'] free of guilt; not subject to blame.
adjective. ['ˌənɪmˈpiːtʃəbəl'] completely acceptable; not open to exception or reproach.
