one after the other Antonyms

abruptly in the same breath on a dime before you know it at the speed of light at warp speed in one breath at the same moment before one can say Jack Robinson all at one time all in one go at one fling almost at the same time at one go before you can say Jack Robinson in one fell swoop apace instantaneously at once all at once all of a sudden all together at the same time at one time simultaneously all of the sudden asudden at a stroke at one stroke before you could say jack robinson