suddenness, rapidity, alacrity, ferocity, abruptness, swift, vehemence, decisiveness, unexpectedness, boldness, thoroughness, adroitness, viciousness, deftness, smoothness, brazenness, effortlessness, relentlessness, speed, adeptness, haste, dexterity, slowness, directness, fluidity, ruthlessness, sophistication, gutsiness, speediness, immediacy, tenacity, candor, forcefulness, precision, unusualness, sangfroid, nimbleness, improbability, intricacy, gracefulness, briskness, callousness, doggedness, fearlessness, deliberateness, promptness, momentousness, eloquence, promptitude, nonchalance, clumsiness, agility, celerity, succinctness, urgency, fierceness, ferociousness, enormity, sureness, fastidiousness, savagery, verve, audaciousness, prescience, indestructibility, immensity, finesse, diligence, regularity, tenaciousness, timing, seriousness, foolhardiness, hubris, athleticism, fervency, vigor, deadliness, steadiness, cogency, elusiveness, quickness, easiness, unpredictability, acuteness, insouciance, preciseness, quicksilver, brevity, inexorability, loquacity, professionalism, equanimity, panache, lightness, enormousness, pugnacity, adaptability, grace, precocity, capriciousness, certitude, vividness, clearness, calmness, audacity, distinctness, lucidity

acceleration, deceleration, execution speed, graduality, gradualness, hastiness, hurriedness, hurry, retardation, slowing

greyhound, mercurial, retribution

pace, rate

fastness