(adv.) In a prompt manner.

PDQ agilely amain animatedly anxiously apace ardently at flank speed at once avidly breathlessly by forced marches cursorily de bonne volonte decisively directly double-quick eagerly enthusiastically expeditiously fast feverishly flat-out forthwith furiously hand over fist hand over hand hastily hell for leather hell-bent hell-bent for election helter-skelter hotfoot hurriedly hurry-scurry immediately impatiently in double time in double-quick time in high in high gear in no time in passing in seven-league boots instantaneously instanter instantly keenly lickety-cut lickety-split momentarily nimbly on the double on the instant on the run on the spot pell-mell post posthaste pretty damned quick pronto punctually quick quickly rapidly readily right away right off slapdash smartly snappily speedily spryly straightaway straightway subito summarily superficially swiftly trippingly under forced draft vivaciously whip and spur willingly with a rush with a will with alacrity with all haste with all speed with dispatch with giant strides with good will with gusto with haste with open arms with rapid strides with relish with speed with zest without delay without further delay without hesitation zealously zestfully