Synonym of quick

root main idea intermediacy mainspring cynosure centrum polestar midpoint core hotbed equidistance starting point bulls-eye virtuality rhizome staples heart bull's eye nave nitty gritty marrow centrality omphalos centre centriole center radicle radix gravamen coal and ice radial point

rapid fast speedy swift hasty hurried nippy abrupt active agile brief brisk cursory energetic expeditious immediate instantaneous keen nimble sudden alert express fleet flying going prompt ASAP a move on accelerated animated breakneck curt double time expeditive harefooted headlong impatient impetuous lively mercurial move it on the double perfunctory posthaste pronto snappy spirited sprightly spry the lead out winged

instant

fleeting momentary passing transient short

bright quick-thinking sharp-witted quick-witted shrewd astute intelligent adroit quick on the uptake clever smart quick off the mark on the ball able deft effective ready sharp vigorous wise acute adept knowing savvy slick whiz all there apt canny capable competent dexterous discerning effectual nimble-witted perceptive perspicacious quick on the draw quick on the trigger receptive sharp as a tack skillful smart as a whip wired

nifty

swiftly double-time snappily soon before long coming down the pike proximately a bit previous quickly on the dot without losing time in time like greased lightning in high gear fleetly in haste hurriedly in good time like a bat out of hell by and by early chop-chop in a second in the bud like a flash in double time in a short time expeditiously with time to spare full tilt in short order in no time in advance lickety split too soon any minute now posthaste in nothing flat ere long pronto like wildfire bright and early chop chop double-quick in a little while oversoon in a minute at once without warning more rapidly on short notice on the double like a shot far ahead fast in due time