ingenuous

[Julene]

lacking in sophistication or worldliness

[Jason Yan]

characterized by an inability to mask your feelings; not devious

[Couch Potatoe]

Naive and trusting.

[Lanell]

Demonstrating childlike simplicity.

[RobertaInvag]

Unsophisticated; simple.

[KalanNug 0]

Unable to mask ones feelings.

[Utpal Shuvro]

Straightforward, candid, open, and frank.

[Tayyaba]

noble; generous; magnanimous; honorable; upright; high-minded; as, an ingenuous ardor or zeal

[Angelast]

free from reserve, disguise, equivocation, or dissimulation; open; frank; as, an ingenuous man; an ingenuous declaration, confession, etc