Despite the gentlemanly kiss, a ferocity burned behind his gaze promising something primal.

…to swear with a ferocity that can only be described as a talent.

…writing with ferocity is a gift, provided that ferocity is a monomaniacal devotion to pursuing the truth …

There are matters in that book, said to be done by the express command of God, that are as shocking to humanity, and to every idea we have of moral justice, as any thing done...

Though she be but little, she is fierce!