madly
adverb
1 she was smiling madly:
insanely, frantically, hysterically, deliriously, wildly, like a lunatic;
informal crazily, barmily.
2 it was fun, hurtling madly downhill:
fast, furiously, hurriedly, quickly, speedily, hastily, energetically;
informal like mad, like crazy.
madly Oxford Dictionary of English