2 adjectives to describe nemesis

Nay, was it not he himself that brought to me my adorable Nemesis; and both together put me upon this very vow, 'That I would never rest till I had drawn in this goddess-daughter of the Harlowes to cohabit with me; and that in the face of all their proud family?'

So complete indeed was their submission that towards the close of the century we find the English executive, harassed and set at nought by its own Protestant colonists, turning by a curious nemesis to the members of this persecuted creed, whose patience and loyalty three quarters of a century of unexampled endurance seemed to have gone far to prove.

2 adjectives to describe  nemesis