成年者

chéngniánzhě
adult

CEDICT

adult; grown-up

Wiktionary

Entry Composition

1 成年 chéngnián
  1. to grow to adulthood
  2. fully grown; adult
  3. the whole year
2 者 zhě
  1. (after a verb or adjective) one who (is) ...
  2. (after a noun) person involved in ...
  3. -er
  4. -ist
  5. (used after a number or 後 hòu or 前 qián to refer to sth mentioned previously)
  6. (used after a term, to mark a pause before defining the term)
  7. (old) (used at the end of a command)
  8. (old) this

Related entries

大人 dàren
  1. adult
  2. grownup
  3. title of respect toward superiors
你现在是大人了。

You are now an adult.

Source: Tatoeba

成體 chéngtǐ
  1. adult
  2. fully formed
  3. developed