soon afterward (adverb) immediately: at once, right away
Sinonime: PDQ,
anon, at short notice,
away,
directly, double-time, forthwith, hereupon, in a New York minute, in a flash, in a jiffy, in nothing flat, instantaneously, instanter,
instantly, like now,
now, now or never, on the dot, on the double, on the spot,
promptly, pronto,
rapidly, right now,
shortly,
soon, soon afterward, straight away, straight off, summarily, thereupon, this instant, this minute, tout de suite, unhesitatingly, urgently, without delay, without hesitation
Antonime: eventually,
later,
never