軟水 なんすい Meanings Noun soft water See also: 硬水 (こうすい). Kanji 軟 supple. Read as ナン. 水 water. Read as スイ. Example sentences 貴殿宅の水道水は硬水過ぎます。軟水を使用しましょう。Your tap water is too hard. Get a water softener. Jinuma: Japanese Dictionary · Word lists