Definition of unmistrustful in English:

unmistrustful

adjective

rare
  • Not mistrustful; trusting.

Origin

Late 16th century; earliest use found in Angell Day (fl. 1563–1595), stationer and writer. From un- + mistrustful.

Pronunciation

unmistrustful

/(ˌ)ʌnmɪsˈtrʌs(t)f(ʊ)l/