1Careful and prudent — acting thoughtfully and cautiously rather than rashly, so as to avoid mistakes.
大きな買い物をするときは慎重に考えたほうがいい。
When making a big purchase, it's better to think carefully.
医師は手術の前に患者の状態を慎重に確認した。
The doctor carefully checked the patient's condition before the surgery.
彼は何事にも慎重で、めったに失敗しない。
He is cautious about everything and rarely makes mistakes.
会社の将来を左右する決定なので、慎重に議論を重ねた。
Since it was a decision that would affect the company's future, we discussed it carefully and repeatedly.