When it comes to describing a naive kid, there are several synonyms that can be used. Some of these synonyms include innocent, inexperienced, green, gullible, impressionable, unsophisticated, and trusting. These words all convey a sense of youth and inexperience, indicating that the individual may lack certain worldly knowledge or understanding. However, they also suggest a certain level of openness and curiosity, which can be admirable traits in a young person. While being naive can sometimes leave one vulnerable to manipulation or deception, it can also be a valuable tool for learning and growth. As such, describing someone as a naive kid may not always be a negative label.