書しょ斎さい人じん

noun

person who spends a lot of time in their study; armchair expert

Often carries a slightly negative nuance of someone who is bookish and out of touch with the real world, similar to 'armchair expert'.

• 彼かれは書しょ斎さい人じんで、実じっ際さいの経けい験けんはほとんどない。

  He is an armchair expert with almost no real-world experience.

• 書しょ斎さい人じんタイプの学がく者しゃは、現げん場ばの声こえを聞きかないことがある。

  Scholars of the armchair type sometimes don't listen to voices from the field.