The text by an unknown poet but of exceptional quality, refers indirectly to the Gospel.

In this Ibsen is referring indirectly to the reception of his previous plays.

He was referring indirectly to Chris and his painting hobby.

He was referring indirectly to the reggae boom of 2002-3.

In continuing, Mann made the situation more clear, and indirectly referred to the theme of the gold robbery.

She was indirectly referring to the scores of letters he had received from Lucretia.

The third mile could also indirectly refer to a particularly elaborate scheme used in the book to lure three of the college staff to London.

The registered name often refers directly or indirectly to the breeder of the animal.

At best, it only referred to such things obliquely and indirectly.