INSTANTLY

adv. 25B6; adverb IMMEDIATELY, at once, straight away, right away, instantaneously; suddenly, abruptly, all of a sudden; forthwith, there and then, here and now, this/that minute, this/that instant; quickly, rapidly, speedily, promptly; in an instant, in a moment, in a (split) second, in a trice, in/like a flash, like a shot, in the twinkling of an eye, in no time (at all), before you know it; informal in a jiffy, pronto, before you can say Jack Robinson, double quick, like (greased) lightning; archaic instanter.