" double-quick "

1: with great speed;

  * e.g., " ... she changed her mind double-quick when she learned that the sales conference would be held in Paris "

•  Synonyms : 

•  apace,

•  briskly,

•  chop-chop,

•  fast,

•  fleetly,

•  full tilt,

•  hastily,

•  hell-for-leather,

•  hot,

•  lickety-split,

•  posthaste,

•  presto,

•  pronto,

•  quick,

•  quickly,

•  rapidly,

•  snappily,

•  soon,

•  speedily,

•  swift,

•  swiftly

•  Antonyms : 

•  slow,

•  slowly