瞬しゅん刻こく

noun

moment; instant

Refers to a very short period of time; similar to 瞬間 (しゅんかん) but less common and slightly more literary.

• その出で来き事ごとは瞬しゅん刻こくのうちに起おこった。

  The event happened in an instant.

• 彼かれは瞬しゅん刻こくの判はん断だんで道みちを変かえた。

  He changed his path in a split-second decision.