2 adjectives to describe denunciator

The bold denunciator of papal abuses was now in danger.

In 1856 Charles Sumner of Massachusetts, one of the most eloquent and forceful denunciators of all the pro-slavery lawlessness, was attacked at his desk in the Senate chamber, after an adjournment, and unmercifully beaten with a heavy cane by Preston Brooks, a member of the House of Representatives, and nephew of Senator Butler of South Carolina.

2 adjectives to describe  denunciator