May-December

Adjective

not-comparable

Pertaining to a relationship in which one person is much older than the other.

Japanese Meaning

年齢差が大きい恋愛関係を指す表現、すなわち一方が非常に年上であるカップルを意味する。

They kept their May-December relationship private despite the rumors.

彼らは噂にもかかわらず、年齢差のある交際を内緒にしていた。

Sense（1）

Pertaining to a relationship in which one person is much older than the other.