他た人にんの空そら似に

expression, noun

accidental resemblance; chance likeness

A set phrase used when two unrelated people look alike by pure coincidence. Often said with a sense of wonder or amusement.

• あの二人ふたりは血けつ縁えん関かん係けいはないのに、まるで他た人にんの空そら似にだ。

  Those two aren't related, but they look so alike—it's a real case of accidental resemblance.

• 街まちで見みかけた人ひとが友とも達だちにそっくりで、他た人にんの空そら似にかと思おもった。

  I saw someone on the street who looked just like my friend, and I thought it must be a chance likeness.