Synonyms:
- always,
- amain,
- apace,
- at all times,
- at flank speed,
- at full speed,
- at once,
- briskly,
- ceaselessly,
- constantly,
- continually,
- daily,
- daily and hourly,
- day after day,
- day and night,
- double-quick,
- ever,
- ever and anon,
- every day,
- every hour,
- every moment,
- expeditiously,
- fast,
- flat-out,
- full tilt,
- hand over fist,
- hand over hand,
- hastily,
- hell for leather,
- hell-bent,
- hell-bent for election,
- hour after hour,
- hourly,
- in a flash,
- in a jiffy,
- in a moment,
- in a trice,
- in a wink,
- in double time,
- in double-quick time,
- in high,
- in high gear,
- in seven-league boots,
- incessantly,
- instantaneously,
- instanter,
- instantly,
- lickety-cut,
- lickety-split,
- like a shot,
- like blazes,
- like greased lightning,
- like mad,
- like one possessed,
- month after month,
- night and day,
- on and on,
- on the double,
- perennially,
- perpetually,
- post,
- posthaste,
- promptly,
- quick,
- quickly,
- regularly,
- right along,
- right away,
- snappily,
- speedily,
- steadily,
- sustainedly,
- swiftly,
- trippingly,
- unceasingly,
- under forced draft,
- unintermittently,
- uninterruptedly,
- unvaryingly,
- whip and spur,
- with all haste,
- with giant strides,
- with rapid strides,
- with speed,
- without cease,
- without delay,
- without letup,
- without stopping,
- year after year