絶ぜっ対たい安あん全ぜん

expression, na-adjective

fail-safe; foolproof; totally safe

Describes a system, method, or situation that is designed to be completely safe and free from risk of failure or harm. Often used in technical, engineering, or everyday contexts to emphasize absolute reliability.

• このシステムは絶ぜっ対たい安あん全ぜんに設せっ計けいされている。

  This system is designed to be fail-safe.

• 絶ぜっ対たい安あん全ぜんな方ほう法ほうでデータを保ほ存ぞんしてください。

  Please save the data in a foolproof way.