がいじゅうないごう

外 柔 内 剛

  1. noun (common) (futsuumeishi)

    gentle but firm
    yojijukugo

    • 見た目には優しそうだけど、彼って皆から外柔内剛の結構なタフネゴシエータと言われているよ。
      He seems like a softy on the surface, but at the core he's got an iron will that makes him an extremely tough negotiator.