慎しん重ちょうを期きする

expression, suru verb (special)

exercise great care; be extremely careful

A formal set phrase meaning to act with the utmost caution, often used in official or serious contexts. The construction is 慎重を期する, where 期する means 'to expect' or 'to ensure', so the phrase literally means 'to ensure prudence'.

See also: 期する

• 個こ人じん情じょう報ほうの取とり扱あつかいには慎しん重ちょうを期きする必ひつ要ようがある。

  We must exercise great care in handling personal information.

• 政せい府ふは外がい交こう政せい策さくに慎しん重ちょうを期きしている。

  The government is being extremely careful with its foreign policy.