4 adjectives to describe avenge

Madness has clasped the brain, too feeble to strive against the flesh in revolt, and the latter has avenged itself as the brute avenge itself by the act of a brute.

This injustice made her suffer, and she endeavoredthe noble childto avenge herself by redoubling her efforts.

Yet the law did not move, and Voltaire was left to take the only course open in those days to a man of honour in such circumstancesto avenge the insult by a challenge and a fight.

Thou wilt avenge it!"

4 adjectives to describe  avenge