a corps perdu
carelessly
demonically
extremely
fanatically
fiercely
forlornly
frantically
frenetically
furiously
happen what may
hastily
head over heels
headfirst
headforemost
headlong
heedlessly
heels over head
helter-skelter
holus-bolus
hopelessly
hotheadedly
hotly
hurriedly
hurry-scurry
impetuously
impossibly
like crazy
like mad
like one possessed
madly
overeagerly
overenthusiastically
overzealously
precipitantly
precipitately
precipitously
ramble-scramble
recklessly
severely
slam-bang
slap-bang
slapdash
uncontrollably
violently
wantonly
wildly