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