Madly, ferociously, furiously, wildly, passionately.

Without restraint (in various shades of meaning). Beyond limits of reason; extravagantly, fantastically; distractedly, as if out of one's wits.

spec. With reference to perturbation or mental disturbance: wildly, frantically. Now somewhat rare.

quasi-adv. Frantically. Obsolete. rare.

In a rabid manner; aggressively; with wild rage or absence of control or reason; fanatically.

In a frenzied or frenetic way.

in a frenzied manner.

In a berserk manner; madly.