3 adjectives to describe asserters

" "A bold asserter of the rights of free speech.

"And so it may, my little Aristotle," continued the clever asserter of his original proposition.

An intransitive or receptive asserter in the unlimited mode, depending on a word in the possessive case, may have, after it, a word in the subjective case, denoting the same thing:

3 adjectives to describe  asserters