- swiftly
- swiftly / swift [adv] very fast apace, doublequick*, expeditiously, flat-out*, fleetly, full tilt*, hastily, hurriedly, in no time*, posthaste, promptly, quick, quickly, rapidly, speedily, without losing time*, without warning*; concepts 588,799 —Ant. slowly, sluggishly swift [adj] very fast abrupt, alacritous, barrelling, breakneck, cracking*, double-quick*, expeditious, express, fleet, fleet-footed*, flying, hasty, headlong, hurried, in nothing flat*, like crazy*, like mad*, nimble, on the double*, precipitate, prompt, pronto, quick, rapid, ready, screaming, shaking a leg*, short, short-lived, snappy*, spanking*, speedball*, speedy, sudden, supersonic, unexpected, winged; concepts 588,799 —Ant. delayed, slow, sluggish
New thesaurus. 2014.