| Main Entry: | |
| 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: | 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: | 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: | 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: | 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: | 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 |
| Main Entry: | eagerly |
| Part of Speech: | adverb |
| Definition: | anxiously |
| Synonyms: | actively, anticipatorily, ardently, breathlessly, cordially, cravingly, earnestly, energetically, enthusiastically, expectantly, fervently, fiercely, full tilt, gladly, heartily, hungrily, impatiently, intently, longingly, promptly, rapidly, readily, readily, sincerely, speedily, spiritedly, strenuously, thirstily, vigorously, willingly, with enthusiasm, with gusto, zealously, zestfully |
| Notes: | eagerly means in an interested or enthusiastic manner; anxiously means with anxiety or apprehension |
| Antonyms: | grudgingly, listlessly, unwillingly |
| Main Entry: | full blast |
| Part of Speech: | adverb |
| Definition: | full speed |
| Synonyms: | all out, flat out, full force, full steam, full tilt, full volume, maximum speed, top speed |
| Main Entry: | full speed |
| Part of Speech: | adverb |
| Definition: | maximum speed |
| Synonyms: | flat out, full sail, full steam, full swing, full tilt, heavy right foot, open throttle |