| young(adjective, new, raw, reckless, inept) |
| childish(adjective, inexperienced, young, undeveloped, unformed) |
| immature(adjective, new, raw, inexperienced, inexpert) |
| foolish(adjective, impulsive, reckless, inexperienced, impractical) |
| half-baked(adjective, stupid, impulsive, impractical, doomed) |
| naive(adjective, new, raw, reckless, inept) |
| puerile(adjective, inexperienced, impractical, half-baked, young) |
| infantile(adjective, inexperienced, young, childish, undeveloped) |
| brash(adjective, reckless, inexperienced) |
| babyish(adjective, inexperienced, young, childish, undeveloped) |
| inexperienced(adjective, new, raw, reckless, inexpert) |
| jejune(noun, inexperienced, young, childish, undeveloped) |
| amateur(new, raw, inept, unfamiliar, inexperienced) |
| amateurish(new, raw, inexpert) |
| crazy(adjective, impulsive, impractical, half-baked, doomed) |
| juvenile(adjective, inexperienced, young, childish, undeveloped) |
| reckless(adjective, inexperienced) |
| ridiculous(adjective, impractical, half-baked, doomed) |
| shallow |
| silly(adjective, impulsive, impractical, half-baked, doomed) |