This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

成人

Reading

Kana: せいじん
Romaji: seijin
Kana
Romaji

Definitions

1

adult

vs
2

to grow up; to mature

3

to come of age

See also: 新成人

Kanji

Readings: セイ、 ジョウ、 な.る、 な.す、 -な.す
Meanings: turn into, become, get, grow, elapse, reach
Readings: ジン、 ニン、 ひと、 -り、 -と
Meaning: person

Example Sentences

その映画(えいが)成人向(せいじんむ)きだ。
➥The movie is X-rated.
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(かれ)はいわば成人(せいじん)した(あか)(ぼう)だ。
➥He is, as it were, a grown-up baby.
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その映画(えいが)成人(せいじん)しかみられない。
➥Only adults may watch that film.
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彼女(かのじょ)成人(せいじん)(まえ)()んだ。
➥She died before coming of age.
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(かれ)はもう成人(せいじん)なので投票(とうひょう)できる。
➥As he is already of age, he can vote.
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日本(にっぽん)では、20(さい)成人(せいじん)となる。
➥In Japan people come of age when they are 20 years old.
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