 Which word doesn't describe the cadets?
They were something more—and something less—they were, in short, humanity's hopes for survival! The starlanes between Earth and her potential colonies were rough on the men who traveled them now. Earth couldn't turn out enough starmen in the schools, so promising kids were being shipped out for training as cadets on their twelfth birthday. The Sol-type sun must be rising, since there was a dim light. Earth had ordered him to detour here, after leaving his load of deep-sleep stored colonists on Official World 71, to check on any sign of Hennessy. One seemed to be almost eight feet tall, leading the others directly toward the spacesuited cadets.
 cautious
 cautious  naïve  embellishers  young