冷れい静せいになる

expression, godan verb (-ru)

calm down; collect oneself; cool off

Used when someone regains composure after being upset, angry, or panicked. Often used in the imperative 冷静になれ or as advice.

Antonyms: 感情に走る

• まずは冷れい静せいになって、状じょう況きょうを整せい理りしよう。

  First, calm down and sort out the situation.

• 彼かれは怒おこっていたが、少すこし時じ間かんをおいて冷れい静せいになった。

  He was angry, but after a little time he cooled off.