Not having been exposed to something.
Produced in a simple, childlike style, deliberately rejecting sophisticated techniques.
Lacking worldly experience, wisdom, or judgement; unsophisticated.
Intuitive; designed to follow the way ordinary people approach a problem.
A naive person; a greenhorn.
Uncommitted, not having reached a decision.
Open and not yet settled or determined.
A voter etc. who has not yet come to a decision.