What are synonyms for active?

alive, astir, at work, bustling, effective, efficacious, exertive, flowing, functioning, going, hasty, impelling, in force, in play, in process, mobile, movable, moving, operating, operative, progressive, pushing, rapid, restless, rolling, running, rushing, rustling, shifting, simmering, speeding, speedy, streaming, swarming, traveling, turning, walking, working

http://www.thesaurus.com/browse/active