1To become lower or to be lowered in level, intensity, or degree (similar to 'to drop' or 'to fall').
病人の体温が夜になって低まった。
The patient's body temperature fell during the night.
会場の緊張感が少しずつ低まってきた。
The tension in the hall gradually eased.
期待が高かったが、情報が出るにつれて期待は低まった。
Expectations were high, but they lessened as information came out.