1. (n.) Promptitude; readiness; quickness of decision or action.

2. (n.) Cheerful willingness; alacrity.

OK abruptness acceptance accord acquiescence acuity acuteness affirmation affirmative affirmative voice agility agreeability agreeableness agreement air speed alacrity alertness amenability animation anxiety anxiousness appetite approbation approval ardor assent attention attentiveness avidity avidness aye blessing breathless impatience brightness briskness celerity cheerful consent cheerful readiness compliance connivance consent cooperativeness decisiveness dispatch docility eagerness elan endorsement enthusiasm expedition expeditiousness fastness favorable disposition favorableness feverishness flight flit flurry forwardness furiousness gameness goodwill ground speed gust gusto haste hastiness hurriedness hurry immediacy immediateness impatience impetuosity impetuousness impulsiveness instantaneousness keen desire keenness knots life lightning speed liveliness miles per hour nimbleness okay permission pliability pliancy precipitance precipitancy precipitation precipitousness promptitude punctuality punctualness quickness rapidity rashness ratification readiness receptive mood receptiveness receptivity responsiveness right mood round pace rpm rush sanction sharpness sleeplessness smartness snappiness speed speediness spirit spryness submission suddenness summariness swift rate swiftness tractability ungrudgingness unloathness unreluctance velocity verve vitality vivacity wakefulness willing ear willing heart willingness zeal zealousness zest zestfulness