Synonyms and related words :
accidental, accompanying, acting, active, ado, afloat, afoot, at work, brewing, circumstantial, current, doing, eventuating, forthcoming, functional, functioning, going, happening, in embryo, in exercise, in force, in hand, in mid-progress, in operation, in play, in practice, in preparation, in process, in production, in progress, in the oven, in the wind, in the works, inaction, incidental, occasional, occurring, on, on foot, on stream, on the anvil, on the fire, on the way, ongoing, operating, operational, passing, prevailing, prevalent, resultant, running, taking place, under construction, under revision, under way, working