in a flash Synonyms

instantaneously instantly in a second without further ado this minute there and then this instant straight away out of the blue in two shakes in the wink of an eye In the blink of an eye in a jiffy without delay with all speed in no time at all in a blink in less than no time very quickly in a trice at the speed of light in a wink that minute that very minute that instant in the twinkling of an eye before you can say Jack Robinson at once swiftly quickly promptly outright now momentarily immediately forthwith directly suddenly all at once right now without hesitation in no time in a moment in an instant here and now straight off right away like a shot all of a sudden abruptly