丁てい年ねん

noun

adulthood; age of majority

Specifically refers to reaching the age of 20, which was the legal age of adulthood in Japan until 2022. Now largely historical or used in contexts referring to the traditional coming-of-age.

• 日本にほんではかつて丁てい年ねんは二十歳はたちと定さだめられていた。

  In Japan, adulthood was once defined as age 20.

• 丁てい年ねんに達たっした者ものは、法ほう律りつ上じょう成せい人じんとみなされる。

  A person who has reached the age of majority is legally considered an adult.