Ingenue (noun)

1. A young, innocent and unsophisticated girl or woman.
2. A naive or inexperienced person, especially a woman.

Origin:

This word is french in origin, meaning "young and innocent girl".

Examples:

1. She played the role of the ingenue in the play.
2. He was attracted to her innocent and ingenue look.
3. She had the perfect ingenue face for the role.
4. She was an ingenue in the world of politics and was easily manipulated.
5. The character's ingenue behavior was a façade hiding her true intentions.