| rash(dull, unintelligent, obtuse, witless, unperceptive) |
| recent(lush, luxuriant, verdant) |
| reckless(obtuse, unperceptive, unobservant) |
| risible |
| short-sighted(silly, foolish, fantastic, unwise, impractical) |
| simpleminded(dull, stupid, absurd, unintelligent, witless) |
| sprouting(lush, luxuriant, verdant) |
| strange(silly, foolish, fantastic, unwise, impractical) |
| supple(lush, luxuriant, verdant) |
| tender(weak, green, inexperienced, lush, luxuriant) |
| tenderfoot(raw, inexperienced, young, immature, childish) |
| undecayed(lush, luxuriant, verdant) |
| underdeveloped(inexperienced, impractical, half-baked, doomed, young) |
| undeveloped(inexperienced, young, childish, unformed) |
| undried(lush, luxuriant, verdant) |
| unfinished(inexperienced, young, childish, undeveloped, unformed) |
| ungrown(adjective, lush, luxuriant, childish, verdant) |
| unintelligent(dull, slight, silly, trivial, absurd) |
| unripened |
| unseasoned(inexperienced, lush, luxuriant, young, childish) |