Naive means (of a person or action) showing a lack of experience, wisdom, or judgement. Sophisticate means of a person or their thoughts, reactions, and understanding) aware of and able to interpret complex issues; subtle. Artless means without effort or pretentiousness; natural and simple. (synonym to naive) credulous means having or showing too great a readiness to believe things. (synonym to naive) callow means (of a young person) inexperienced and immature. (synonym to naive)