Synonyms and related words :
acting, active, armipotent, at work, authoritative, being, cogent, current, dynamic, effective, energetic, existent, existing, extant, forceful, forcible, functional, functioning, going, going on, high-potency, high-powered, high-pressure, high-tension, in being, in commission, in effect, in exercise, in existence, in hand, in operation, in play, in power, in practice, in process, in service, in the works, in use, inaction, irresistible, living, mighty, mighty in battle, on foot, on the fire, ongoing, operating, operational, operative, potent, powerful, prepotent, present, prevalent, puissant, ruling, running, striking, strong, subsistent, subsisting, telling, under the sun, valid, vigorous, vital, working