- ingenuous, artless - characterized by an inability to mask your feelings; not devious; "an ingenuous admission of responsibility"
Antonyms: disingenuous, artful, distorted, misrepresented, perverted, twisted
- 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"
Antonym: sophisticated (indirect, via naive)