Healthy, sound, or wholesome; free from defect or moral corruption. Often used as '健全な～' to describe balanced or proper conditions.
子どもの健全な成長を支援するプログラムが必要だ。
Programs are needed to support children's healthy development.
企業の健全性をチェックするために会計監査を行った。
An audit was conducted to check the company's financial soundness.
健全な判断を下すために情報を集めた。
Collected information in order to make a sound judgment.