刻こく舟しゅう

expression, noun

not keeping up with the times; being out of touch with change

Idiomatic expression from a classical Chinese parable about a man who marked his boat to find a lost sword, ignoring the boat's movement. Used to criticize someone who clings to outdated methods or fails to adapt to changing circumstances. Rare and literary.

• 「刻こく舟しゅう」は、時じ代だいの変へん化かに気きづかず古ふるい考かんがえに固こ執しゅうすることを批ひ判はんする故こ事じ成せい語ごだ。

  '刻舟' is a classical idiom that criticizes clinging to old ideas without noticing the changing times.