0 determined, brave, and unwilling ever to stop trying to achieve something: --
She has been for many years a doughty campaigner for women's rights.
It could have no more doughty fighter on its behalf.
He was with a firm that later found that he was a doughty opponent.
She has proved herself a doughty and highly successful representative of this country on many such occasions.
I know that he is a doughty debater but an eminently fair one.
I know that he is a doughty fighter, not only for people who live in his constituency, but for people who visit it.
Having heard him today, it is clear that his constituency has a doughty champion.
I am sure that we all respect his doughty defence of his constituency interests, but we must get the debate into its true perspective.
He is known as a warrior for the 11-plus and a doughty opponent of the comprehensive principle.