2 adjectives to describe retractation

Then at length a change came; and it was marked outwardly by a curious retractation of his severe language about Rome, published in a paper called the Conservative Journal, in January 1843; and more distinctly, by his resignation of St. Mary's in September 1843, a step contemplated for some time, and by his announcement that he was preparing to resign his fellowship.

HONTHEIM, a German Catholic theologian, born at Trèves; distinguished for his bold assertion and subsequent retractation of a doctrine called Febronianism, from the nom de plume Febronius which he assumed, tending to the disparagement of the Papal authority in the Church (1701-1790).

2 adjectives to describe  retractation