天然(てんねん)

てんねん
noun, no-adjective
natural, nature
colloquialdescriptive
1. natural, nature
Existing in or produced by nature; not artificial or man-made.
この水(みず)は天然(てんねん)の湧(わ)き水(みず)だ。
This water is natural spring water.
天然(てんねん)素材(そざい)を使(つか)った製品(せいひん)。
Products made with natural materials.
天然(てんねん)ガスは重要(じゅうよう)なエネルギー資源(しげん)だ。
Natural gas is an important energy resource.
2. natural, airhead (colloquial)
A person who is naturally scatterbrained or innocently oblivious.
彼女(かのじょ)は天然(てんねん)だから、悪気(わるぎ)はないよ。
She's just naturally airheaded, she doesn't mean any harm.
Colloquial usage
彼(かれ)は天然(てんねん)ボケで、いつもみんなを笑(わら)わせる。
He's a natural airhead and always makes everyone laugh.
天然(てんねん)ボケ = unintentionally funny person
あの人(ひと)、天然(てんねん)なのか計算(けいさん)なのか分(わ)からない。
I can't tell if that person is genuinely airheaded or doing it on purpose.

Compounds

Colloquial usage

天然(てんねん) alone can mean "airhead" or a person who is naturally scatterbrained in an endearing way. This is different from 天然(てんねん)ボケ, which specifically means someone who unintentionally says funny things.

Similar words

Related Words

Antonym: 人工(じんこう) (artificial)
Antonym: 人造(じんぞう) (man-made)
Compare: 自然(しぜん) (nature, natural)
Compare: 無添加(むてんか) (additive-free)
general
Added 2026.1.12 18:39 · Revised 2026.9.2 13:01
03500/03560_tennen