PDQ, agilely, amain, apace, at flank speed, at once, by forced marches, cursorily, decisively, directly, double-quick, effectively, fast, feverishly, flat-out, forthwith, furiously, hand over fist, hand over hand, hastily, hell-bent, hell-bent for election, hell for leather, helter-skelter, hotfoot, hurriedly, hurry-scurry, immediately, in double-quick time, in double time, in high, in high gear, in no time, in passing, in seven-league boots, instanter, instantly, lickety-cut, lickety-split, nimbly, on the double, on the instant, on the run, on the spot, pell-mell, post, posthaste, pretty damned quick, promptly, 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, whip and spur, with a rush, with all haste, with all speed, with dispatch, with giant strides, with haste, with rapid strides, with speed, without delay, without further delay