成人

• 読み: せいじん
• ローマ字: seijin
• 漢字の分解: 成 (sei) — become, accomplish; 人 (jin) — person
• 発音: /se.i.dʑi.n/

意味

Adult; a person who has reached the age of majority.

A noun referring to someone who has legally become an adult. In Japan, the age of majority was lowered from 20 to 18 in April 2022. 成人の日 (Coming of Age Day) is a national holiday in January celebrating those who turned 20. Also used in compounds like 成人式 (coming-of-age ceremony).

例文

1. 日本では十八歳で成人になる。
2. 成人式に振袖を着る女性が多い。
3. 成人向けの映画は子供は見られない。

使い方ガイド

場面: law, ceremonies, society

トーン: neutral

起源と歴史

Composed of 成 (to become, to accomplish) and 人 (person). Literally 'a person who has become complete,' reflecting the cultural concept of reaching maturity.

文化的背景

時代: Classical

世代: All ages

社会的背景: Universal