Synonyms of instantly in English:

instantly

adverb

  • 1 she fell asleep almost instantly
    immediately, at once, straightaway, right away, instantaneously; suddenly, abruptly, all of a sudden; forthwith, then and there, 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, in a jiff, pronto, like (greased) lightning, stat, on the double, tout de suite
  • Definition of instantly in:

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    Word of the day anomalous
    Pronunciation: əˈnɒm(ə)ləs
    adjective
    deviating from what is standard, normal, or expected