成人

• Reading: せいじん
• Romaji: seijin
• Kanji breakdown: 成 (sei) — become, accomplish; 人 (jin) — person
• Pronunciation: /se.i.dʑi.n/

Meaning

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).

Examples

1. 日本では十八歳で成人になる。 In Japan, you become an adult at eighteen.
2. 成人式に振袖を着る女性が多い。 Many women wear furisode kimono for the coming-of-age ceremony.
3. 成人向けの映画は子供は見られない。 Movies rated for adults can't be watched by children.

Usage Guide

Context: law, ceremonies, society

Tone: neutral

Origin & History

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

Cultural Context

Era: Classical

Generation: All ages

Social background: Universal