やいなや

や 否 や

  1. expressions (phrases, clauses, etc.)

    the minute (that) ..., no sooner than ..., as soon as
    after the dictionary form of a verb

    • そこに出かけるやいなや彼女は病気になった。
      No sooner had she gone there than she was taken ill.

  2. expressions (phrases, clauses, etc.)

    whether or not