| Main Entry: | |
| 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: | 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: | immediately |
| Part of Speech: | adverb |
| Definition: | at once, right away |
| Synonyms: | PDQ, anon, at short notice, away, directly, double-time, forthwith, hereupon, in a New York minute, in a flash, in a jiffy, in nothing flat, instantaneously, instanter, instantly, like now, now, now or never, on the dot, on the double, on the spot, promptly, pronto, rapidly, right now, shortly, soon, soon afterward, straight away, straight off, summarily, thereupon, this instant, this minute, tout de suite, unhesitatingly, urgently, without delay, without hesitation |
| Antonyms: | eventually, later, never |
| Main Entry: | madly |
| Part of Speech: | adjective |
| Definition: | wildly, fiercely |
| Synonyms: | absurdly, crazily, deliriously, dementedly, desperately, devotedly, distractedly, energetically, exceedingly, excessively, excitedly, extremely, foolishly, frantically, frenziedly, furiously, hard, hastily, hurriedly, hysterically, insanely, intensely, irrationally, like mad, ludicrously, nonsensically, passionately, psychotically, quickly, rabidly, rapidly, rashly, recklessly, senselessly, something fierce, speedily, stormily, to distraction, tumultously/tumultuously, turbulently, unreasonably, violently |
| Antonyms: | calmly, normally |
| Main Entry: | on the double |
| Part of Speech: | adverb |
| Definition: | very quickly |
| Synonyms: | chop chop, chop-chop, double-time, expeditiously, fast, flat-out, fleetly, full tilt, hastily, hurried, hurriedly, in a flash, in double time, in haste, in high gear, lickety-split, lickety-split, like a shot, like greased lightning, like wildfire, promptly, pronto, quick, quickly, rapidly, snappily, speedily, swift, swiftly |
| 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: | 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: | quickly |
| Part of Speech: | adverb |
| Definition: | fast |
| Synonyms: | apace, briskly, chop-chop, expeditiously, flat-out, fleetly, full tilt, hastily, hurriedly, immediately, in a flash, in haste, in nothing flat, in short order, instantaneously, instantly, lickety-split, like a bat out of hell, like a flash, like a shot, promptly, pronto, quick, rapidly, speedily, swift, swiftly |
| 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 |