pell-mell

adjectives

with undue hurry and confusion
"a helter-skelter kind of existence with never a pause"; "a pell-mell dash for the train"
helter-skelter, pell-mell

adverbs

in a wild or reckless manner
"dashing harum-scarum all over the place"; "running pell-mell up the stairs"
harum-scarum, pell-mell