double-quick Synonyms

double time at the double at full tilt expeditiously hurriedly chop-chop straightaway like a shot alacritous at once swiftly without losing time forced march full tilt double march at breakneck speed at the speed of light with all speed very fast without delay snappily pronto on the double in haste swift sudden speedy hasty hastily flying fleetly festination FAST express double briskly apace hot hurried immediately speedily soon rapidly rapid quickly quick promptly presto posthaste instantly