Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

113. [Point of time] Instantaneity — N. instantaneity,

instantaneousness, immediacy; suddenness, abruptness. moment, instant, second, minute; twinkling, trice, flash, breath, crack, jiffy, coup, burst, flash of lightning, stroke of time. epoch, time; time of day, time of night; hour, minute; very minute &c, very time, very hour; present time, right time, true time, exact correct time. V. be instantaneous &c adj.; twinkle, flash. Adj. instantaneous, momentary, sudden, immediate, instant, abrupt, discontinuous, precipitous, precipitant, precipitate; subitaneous†, hasty; quick as thought, quick as lightning, quick as a flash; rapid as electricity. speedy, quick, fast, fleet, swift, lively, blitz; rapid (velocity) 274. Adv. instantaneously &c adj.; in no time, in less than no time; presto, subito†, instanter, suddenly, at a stroke, like a shot; in a moment &c n.. in the blink of an eye, in the twinkling of an eye, in a trice; in one's tracks; right away; toute a l'heure [Fr.]; at one jump, in the same breath, per saltum [Lat.], uno saltu [Lat.]; at once, all at once; plump, slap; at one fell swoop; at the same instant &c n.; immediately &c (early) 132; extempore, on the moment, on the spot, on the spur of the moment; no sooner said than done; just then; slap-dash &c (haste) 684. Phr. touch and go; no sooner said than done.