With deep feeling or emotion; ardently, passionately, vehemently.

= frantically, adv.

In a raging manner; vehemently, furiously.

Without restraint (in various shades of meaning). With unrestrained or violent movement, feeling, or utterance; vehemently; excitedly…

in a turbulent manner; with much commotion, tumultuously, violently.

Without self-restraint; ungovernably, unrestrainedly. Obsolete.

in a transported manner, in a transport.

Of persons: Violently excited. like wild: with passionate eagerness, with great excitement. Cf. like mad at mad, adj. phrases 1.

In a frantic manner.

colloquial. Passionately, fervently (cf. quot. 1600 at sense 1). Frequently in madly in love.

like crazy = like mad at mad, adj. phrases 1. colloquial (originally U.S.).