| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | very quick |
| Synonyms: | accelerated, active, agile, breakneck, brisk, double time, expeditious, expeditive, express, fast, fleet, fleet of foot, flying, hasty, hurried, in nothing flat, light-footed, like a house on fire, lively, mercurial, nimble, on the double, precipitate, prompt, quick as a wink, quickened, ready, really rolling, screaming, speedy, spry, swift, winged |
| Notes: | a turbulent, rock-obstructed river area is rapid(s) and steep rapids make a cataract |
| Antonyms: | languishing, leisurely, slack, slow |
| Main Entry: | active |
| Part of Speech: | adjective |
| Definition: | very involved in activity |
| Synonyms: | aggressive, agile, alert, alive, animated, assiduous, bold, brisk, bustling, busy, chipper, daring, dashing, determined, dexterous, diligent, dynamic, eager, energetic, engaged, enlivened, enterprising, enthusiastic, eventful, fireball, forceful, forcible, fresh, frisky, hard-working, high-spirited, hyper, industrious, intense, inventive, jumping, keen, lively, nimble, on the move, perky, persevering, purposeful, pushing, quick, rapid, ready, resolute, sharp, sprightly, spry, whiz*, zealous |
| Notes: | active knowledge is the knowledge of a language which a user actively employs in speech or writing, as opposed to passive knowledge, which is what a person understands in what he/she hears or reads |
| Antonyms: | disinterested, idle, indifferent, lazy, quiescent, quiet |
| Main Entry: | agile |
| Part of Speech: | adjective |
| Definition: | physically or mentally nimble, deft |
| Synonyms: | active, acute, alert, athletic, brisk, buoyant, bustling, clever, dexterous, easy-moving, energetic, fleet, frisky, limber, lithe, lively, mercurial, prompt, quick, quick on the draw, quick on the trigger, quick-witted, rapid, ready, sharp, spirited, sportive, spright, sprightly, spry, stirring, supple, swift, twinkle toes, vigorous, vivacious, winged, zippy |
| Antonyms: | brittle, clumsy, stiff |
| Main Entry: | breakneck |
| Part of Speech: | adjective |
| Definition: | extremely fast |
| Synonyms: | at full tilt, dangerously fast, excessive, flat out, headlong, high-speed, lightning, precipitate, rapid, reckless, speedy, whirlwind |
| Antonyms: | extremely slow |
| Main Entry: | cursory |
| Part of Speech: | adjective |
| Definition: | casual, hasty |
| Synonyms: | brief, careless, depthless, desultory, fast, half-assed, half-baked, haphazard, hit or miss, hurried, offhand, passing, perfunctory, quick, random, rapid, shallow, short, sketchy, slapdash, slight, sloppy, speedy, summary, superficial, swift, uncritical |
| Notes: | cursory means 'superficial'; cursorial is 'pertaining or adapted to running' |
| Antonyms: | complete, meticulous, painstaking, perfect, thorough, unhurried |
| Main Entry: | expeditious |
| Part of Speech: | adjective |
| Definition: | immediate, speedy |
| Synonyms: | active, alert, breakneck, brisk, diligent, effective, effectual, efficient, fast, fleet, hasty, instant, nimble, prompt, punctual, quick, rapid, ready, swift |
| Antonyms: | pokey, retarded, slow |
| Main Entry: | express |
| Part of Speech: | adjective |
| Definition: | direct, speedy |
| Synonyms: | accelerated, fast, high-speed, nonstop, quick, rapid, swift, velocious |
| Antonyms: | indirect, slow |
| 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: | fleet |
| Part of Speech: | adjective |
| Definition: | quick in movement |
| Synonyms: | agile, barreling, breakneck, brisk, expeditious, expeditive, fast, flying, hasty, in nothing flat, like greased lightning, lively, mercurial, meteoric, nimble, nimble-footed, on the double, rapid, screaming, speedball, speedy, swift, winged |
| Antonyms: | clumsy, slow |