peace of mind

Noun

uncountable

The absence of mental turmoil or anxiety.

Japanese Meaning

心の平穏 / 精神的な安らぎ / 安心感

After finalizing his will, he finally felt peace of mind and could focus on spending time with his family.

遺言を確定した後、彼はようやく安心感を得て家族と過ごすことに集中できた。

Sense（1）

The absence of mental turmoil or anxiety.

These people are under continual disquietudes, never enjoying a minute's peace of mind.