七なな不ふ思し議ぎ

noun

seven wonders (of a particular area)

Refers to a set of seven remarkable or mysterious things in a specific region, school, or context. Often used in phrases like 世界の七不思議 (Seven Wonders of the World) or 学校の七不思議 (seven mysteries of a school).

See also: 世界の七不思議

• 世せ界かいの七なな不ふ思し議ぎについて調しらべています。

  I'm researching the Seven Wonders of the World.

• この学がっ校こうには七なな不ふ思し議ぎがあるらしい。

  Apparently this school has seven mysteries.

noun

total mystery; enigma; conundrum

Jocular or humorous use; describes something completely baffling or inexplicable, as if it were one of the seven wonders. Often used in phrases like 七不思議だ or 七不思議の一つ.

• 彼かれがどうやってあのテストに合ごう格かくしたのか、まったく七なな不ふ思し議ぎだ。

  How he passed that test is a total mystery.

• この機き械かいが動うごく仕し組くみは七なな不ふ思し議ぎの一ひとつだよ。

  The way this machine works is one of life's great enigmas.