state - the way something is with respect to its main attributes; "the current state of knowledge"; "his state of health"; "in a weak financial state"

agency - the state of being in action or exerting power; "the agency of providence"; "she has free agency"

busyness, hum - the state of being or appearing to be actively engaged in an activity; "they manifested all the busyness of a pack of beavers"; "there is a constant hum of military preparation"

behaviour, behavior - the action or reaction of something (as a machine or substance) under specified circumstances; "the behavior of small particles can be studied in experiments"

eructation, extravasation, eruption - (of volcanos) pouring out fumes or lava (or a deposit so formed)

operation - the state of being in effect or being operative; "that rule is no longer in operation"

overdrive - the state of high or excessive activity or productivity or concentration; "Troops are ready to go into overdrive as soon as the signal is given"; "Melissa's brain was in overdrive"

play - a state in which action is feasible; "the ball was still in play"; "insiders said the company's stock was in play"

swing - a state of steady vigorous action that is characteristic of an activity; "the party went with a swing"; "it took time to get into the swing of things"

trait - a distinguishing feature of your personal nature

brio, invigoration, spiritedness, vivification, animation - quality of being active or spirited or alive and vigorous

pizzaz, pizzazz, zing, dynamism, oomph - the activeness of an energetic personality