十じゅう年ねん一ひと昔むかし

noun

ten years is a long time; things change so much in ten years that it feels like a different era

Proverbial yojijukugo expressing that a decade brings such great change that the past seems distant. Often used when reflecting on how much has changed.

• 十じゅう年ねん一ひと昔むかしと言いうが、十じゅう年ねん前まえのスマートフォンはもう懐なつかしい。

  They say ten years is a long time, and smartphones from ten years ago already feel nostalgic.

• この街まちも十じゅう年ねん一ひと昔むかしで、ずいぶん景色けしきが変かわった。

  This town has changed so much in ten years that it feels like a different place.