| Main Entry: | posthaste |
| Part of Speech: | adjective, adverb |
| Definition: | fast |
Synonyms: |
at once, breakneck, directly, double-quick, expeditious, flat-out, fleet, fleetly, full tilt, hastily, hasty, headlong, lickety-split, pell-mell, promptly, pronto, quick, quickly, rapid, rapidly, speedily, speedy, straightaway, swift, swiftly |
Antonyms: |
eventually, slow, slowly |
| Main Entry: | fast |
| Part of Speech: | adjective |
| Definition: | speedy |
Synonyms: |
PDQ, accelerated, active, agile, blue streak, breakneck, brisk, chop-chop, dashing, double-time, electric, expeditious, expeditive, flashing, fleet, fleeting, flying, hairtrigger, hasty, hot, hurried, hypersonic, in a jiffy, in nothing flat, lickety split, like a bat out of hell, like all get out, like crazy, like mad, nimble, on the double, posthaste, presto, pronto, quick, racing, rapid, ready, screamin', snap*, snappy, speedball, supersonic, swift, velocious, winged |
Antonyms: |
plodding, slow, tardy, unhurried |
| Main Entry: | fast |
| Part of Speech: | adverb |
| Definition: | speedily |
Synonyms: |
apace, chop-chop, expeditiously, flat-out, fleetly, full tilt, hastily, hurriedly, in a flash, in haste, in nothing flat, in short order, like a flash, like a shot, like greased lightning, like wildfire, posthaste, presto, promptly, pronto, quick, quickly, rapidly, soon, swift, swiftly |
Antonyms: |
slow, slowly |
| Main Entry: | hastily |
| Part of Speech: | adverb |
| Definition: | with great speed |
Synonyms: |
agilely, apace, carelessly, double-quick, expeditiously, fast, flat-out, heedlessly, hurriedly, impetuously, impulsively, lickety-split, nimbly, on spur of the moment, posthaste, precipitately, prematurely, promptly, quickly, rapidly, rashly, recklessly, speedily, straightaway, subito, suddenly, swiftly, thoughtlessly, too quickly, unpremeditatedly |
Antonyms: |
delayed, slowly |
| Main Entry: | pell-mell |
| Part of Speech: | adverb |
| Definition: | hurriedly and carelessly |
Synonyms: |
foolishly, full tilt, hastily, headlong, heedlessly, helter-skelter, impetuously, incontinently, indiscreetly, posthaste, precipitiously, rashly, recklessly, thoughtlessly |
Antonyms: |
carefully, cautiously |
| Main Entry: | promptly |
| Part of Speech: | adverb |
| Definition: | immediately |
Synonyms: |
PDQ, at once, directly, expeditiously, fast, flat-out, fleetly, hastily, in nothing flat, instantly, lickety-split, like a shot, now, on the dot, on the double, on time, posthaste, pronto, punctually, quickly, rapidly, right away, sharp, speedily, straightaway, swiftly, unhesitatingly |
Antonyms: |
late, negligently |
| Main Entry: | quick |
| Part of Speech: | adjective |
| Definition: | fast, speedy |
Synonyms: |
ASAP, a move on, abrupt, accelerated, active, agile, alert, animated, breakneck, brief, brisk, cursory, curt, double time, energetic, expeditious, expeditive, express, fleet, flying, going, harefooted, hasty, headlong, hurried, immediate, impatient, impetuous, instantaneous, keen, lively, mercurial, move it, nimble, on the double, perfunctory, posthaste, prompt, pronto, rapid, snappy, spirited, sprightly, spry, sudden, swift, the lead out, winged* |
Antonyms: |
lazy, slow, sluggish |
| Main Entry: | rapidly |
| Part of Speech: | adverb |
| Definition: | very quickly |
Synonyms: |
at speed, briskly, expeditiously, fast, flat out, full tilt, hastily, hurriedly, immediately, in a hurry, in a rush, in haste, lickety-split, like a shot, posthaste, precipitately, promptly, speedily, swiftly, with dispatch |
Antonyms: |
leisurely, slowly |
| Main Entry: | soon |
| Part of Speech: | adverb |
| Definition: | in the near future |
Synonyms: |
anon, any minute now, before long, betimes, by and by, coming down the pike, directly, early, ere long, expeditiously, fast, fleetly, forthwith, hastily, in a little while, in a minute, in a second, in a short time, in due time, in short order, in time, instantly, lickety-split, on time, posthaste, presently, promptly, pronto, quick, quickly, rapidly, short, shortly, speedily |
Antonyms: |
distant, far, later, never |
| Main Entry: | swiftly/swift |
| Part of Speech: | adverb |
| Definition: | very fast |
Synonyms: |
apace, double-quick, expeditiously, flat-out, fleetly, full tilt, hastily, hurriedly, in no time, posthaste, promptly, quick, quickly, rapidly, speedily, without losing time, without warning |
Antonyms: |
slowly, sluggishly |