S: (adj) innocent, ingenuous (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"
S: (adj) innocent, unacquainted (not knowledgeable about something specified) "American tourists wholly innocent of French"; "a person unacquainted with our customs"
S: (adj) barren, destitute, devoid, free, innocent (completely wanting or lacking) "writing barren of insight"; "young recruits destitute of experience"; "innocent of literary merit"; "the sentence was devoid of meaning"