一いっ虚きょ一いち実じつ

noun

constantly changing and unpredictable

A yojijukugo describing a situation or person's tactics that alternate between falsehood and truth, making them hard to read. Often used in strategic or literary contexts.

• 彼かれの戦せん略りゃくは一いっ虚きょ一いち実じつで、相あい手てはまったく読よめなかった。

  His strategy was a mix of feints and real moves, and his opponent couldn't read him at all.

• 一いっ虚きょ一いち実じつの駆かけ引ひきが、このゲームの醍だい醐ご味みだ。

  The back-and-forth of deception and truth is what makes this game so enjoyable.