Source : Webster's Revised Unabridged Dictionary (1913)

Crazily \Cra"zi*ly\ (kr[=a]"z[i^]*l[y^]), adv.
   In a crazy manner.

Source : WordNet®

crazily
     adv : in an insane manner; "she behaved insanely"; "he behaves
           crazily when he is off his medication"; "the witch
           cackled madly"; "screaming dementedly" [syn: {insanely},
            {dementedly}, {madly}] [ant: {sanely}]