definition of
ingenuous

[1] #1 ingenuous a. [artless] characterized by an inability to mask your feelings; not devious; "an ingenuous admission of responsibility". wn

[2] #2 ingenuous s. [innocent] lacking in sophistication or worldliness; "a child's innocent stare"; "his ingenuous explanation that he would not have burned the church if he had not thought the bishop was in it". wn