ingenuous
/in-ˈjen-yə-wəs/
adjective
showing innocent or childlike simplicity and candidness
lacking craft or subtlety
noble, honorable
her ingenuous thirst for experience
ingenuous in their brutality
natural ingenuous naive unsophisticated artless mean free from pretension or calculation. natural implies lacking artificiality and self-consciousness and having a spontaneousness suggesting the natural rather than the man-made world. ingenuous implies inability to disguise or conceal one's feelings or intentions.
adjective
ingenious