2 adjectives to describe detrimental

The last Medicean Grand Duke to occupy the Pitti was Gian Gastone, a bizarre detrimental, whose head, in a monstrous wig, may be seen at the top of the stairs leading to the Uffizi gallery.

Elderly mammas and blushing débutantes were already thinking of the best means whereby next season they might more easily show the cold shoulder to young Murray Brooks, who had so suddenly become a hopeless 'detrimental' in the marriage market, when all these sensations terminated in one gigantic, overwhelming bit of scandal, which for the next three months furnished food for gossip in every drawing-room in Dublin.

2 adjectives to describe  detrimental