終しゅう生せい

noun, adverb

all one's life; throughout one's life; as long as one lives

Used for something that continues for the entirety of a person's life, often in formal or written contexts.

• 彼かれは終しゅう生せいその秘ひ密みつを守まもり通とおした。

  He kept that secret all his life.

• 終しゅう生せい忘わすれられない思おもい出でです。

  It is a memory I will never forget as long as I live.