天てん然ねん水すい

noun

natural water; untreated water; spring water

Refers to water from natural sources such as springs, rivers, or groundwater, often implying it is untreated or minimally processed. Commonly used in product labeling and environmental contexts.

• このペットボトルには天てん然ねん水すいが入はいっています。

  This plastic bottle contains natural water.

• 山やまで汲くんだ天てん然ねん水すいはとても冷つめたくて美味おいしい。

  The natural water drawn from the mountain is very cold and delicious.