| childish(adjective, silly, innocent, inexperienced, infant) |
| puerile(adjective, innocent, inexperienced, infant, young) |
| immature(adjective, innocent, inexperienced, young, youth) |
| babyish(adjective, like, innocent, inexperienced, infant) |
| juvenile(adjective, innocent, inexperienced, young, childlike) |
| infantine(adjective, innocent, inexperienced, infant, young) |
| young(adjective, innocent, inexperienced, childlike, childish) |
| baby(adjective, beginning, innocent, inexperienced, infant) |
| infant(adjective, beginning) |
| youthful(adjective, innocent, inexperienced, young, childish) |
| childlike(adjective, youth) |
| incipient(adjective, beginning) |
| adolescent(adjective, innocent, inexperienced, young, childlike) |
| newborn(adjective, beginning, infant) |
| sophomoric(adjective, inexperienced, young, childish, undeveloped) |
| boyish(adjective, infant) |
| embryonic(adjective, beginning) |
| initial(adjective, beginning) |
| nascent(adjective, beginning) |
| original(adjective, beginning) |