in an instant Antonyms

prosily slowly sometime somewhen stagnantly steadily successively tamely tardy sleepily slackly prudentially quiescently rancorously ritardando scherzo sedentarily serenely silently thickly torpidly uniformly bleakly lethargically boorishly lifelessly protractedly by inches manana motionlessly little by little step by step at last at length later on against time at long last languidly larghissimo bit by bit nervelessly abstinently dully dumbly evenly eventually ex post facto flatly fumblingly gently