世せ事じ

noun

worldly affairs; ways of the world

Refers to practical knowledge about society, customs, and how the world works, often used in phrases like 世事に疎い (ignorant of the ways of the world) or 世事に長ける (well-versed in worldly matters).

• 彼かれは研けん究きゅうに没ぼっ頭とうしていて、世せ事じに疎うとい。

  He is so absorbed in his research that he is ignorant of worldly affairs.

• 祖そ母ぼは年としを取とっても世せ事じに明あかるい。

  Even in old age, my grandmother is well-informed about the ways of the world.