acceleration agile amain apace at flank speed at the double breakneck crowded dashing double march double time double-quick time double-time eagle-winged expeditious expeditiously express fast festination fleet flying forced march forwarding galloping goose step hair-trigger half step hand over fist hand over hand hard-pressed hard-pushed hard-run hastening hastily hasty headlong hell for leather hell-bent hell-bent for election hurried hurrying hustling in double time in double-quick time in high in high gear in seven-league boots lickety-cut lickety-split light of heel light-footed lively march mercurial nimble nimble-footed on the double post posthaste precipitate pressed pressed for time prompt promptly pushed quick quick as lightning quick as thought quick march quick time quickening quickly quickstep quickstep march rapid rapidly reckless running rushed slow march slow time snappily snappy spanking speedily speeding speedy swift swiftly trippingly under forced draft whip and spur winged with all haste with giant strides with rapid strides with speed