To cool down; to become cold (used for hot things like food or drinks losing heat).
せっかくのスープが冷めないうちに食べてください。
Please eat the soup before it cools down.
料理をテーブルに出している間に冷めてしまった。
The dish cooled down while it was on the table.
コーヒーが冷めてしまったから、電子レンジで温め直す。
The coffee got cold, so I'll reheat it in the microwave.
To cool off (emotion, excitement, temper); to subside or wane; interest or enthusiasm fades.
怒りがだんだん冷めてきて、話し合いができるようになった。
The anger gradually cooled, and we were able to talk things over.
人気が出たばかりの商品も、時間が経つと冷めることがある。
A newly popular product can lose its appeal over time.
彼女への気持ちが少し冷めたと彼は言った。
He said his feelings for her had cooled a little.
To have a cold or composed expression; to be calm and not show much emotion.
彼は質問に対して冷めた表情で答えた。
He answered the question with a cold expression.
その冗談には皆が冷めた目で見ていた。
Everyone watched that joke with unamused looks.