pubescent

1. Reaching or having reached puberty.
2. Covered with short hairs or soft down.

[Latin pūbēscēns, pūbēscent-, present participle of pūbēscere, to reach puberty, from pūbēs, adult.]

1. Reaching or having reached puberty.
2. Covered with fine short hairs.

1. arriving at the age of puberty.
2. covered with down or lanugo.

Hairy or downy.

The adjective has 2 meanings:

Meaning #1: (of animals especially human beings) having arrived at the onset of puberty (the age at which sex glands become functional) but not yet fully mature

Meaning #2: (biology) covered with fine soft hairs or down
  Synonyms: downy, puberulent, sericeous