Synonyms and related words :
air speed, alacrity, anxiety, barrel, beeline, breathless impatience, briskness, bucket, bustle, carelessness, celerity, chafing, dash, desperateness, devil-may-careness, dispatch, disquietude, drive, eagerness, excitement, expedition, expeditiousness, fastness, fleetness, flight, flit, flurry, forwardness, fretfulness, fretting, furiousness, ground speed, hasten, hastiness, heedlessness, highball, hotfoot, hotheadedness, hurriedness, hurry, hustle, impatience, impatientness, impetuosity, impetuousness, impulse, impulsiveness, instantaneousness, knots, lather, lightning speed, miles per hour, overeagerness, overenthusiasm, overhastiness, overzealousness, pace, precipitance, precipitancy, precipitateness, precipitation, precipitousness, precociousness, precocity, prematureness, prematurity, promptitude, promptness, quickness, rapidity, rashness, recklessness, restiveness, restlessness, rocket, round pace, rpm, run, rush, rustle, snappiness, speed, speediness, stew, suddenness, sweat, swift rate, swiftness, tense readiness, uneasiness, unpatientness, unquietness, untimeliness, urgency, velocity, wantonness, wildness