| Main Entry: | |
| 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: | abrupt |
| Part of Speech: | adjective |
| Definition: | happening suddenly and unexpectedly |
| Synonyms: | hasty, hurried, jerky, precipitate, precipitous, quick, rushing, sudden, surprising, unanticipated, unceremonious, unexpected, unforeseen |
| Antonyms: | at ease, deliberate, expansive, gradual, leisurely |
| 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: | adept |
| Part of Speech: | adjective |
| Definition: | very able |
| Synonyms: | accomplished, ace*, adroit, brainy, capable, clean*, crack*, crackerjack*, deft, dexterous, expert, hot*, hotshot, know stuff, masterful, masterly, no dummy, no slouch, nobody's fool, on the ball, on the beam, practiced, proficient, quick, savvy, sharp, sharp as a tack, skilled, skillful, slick, smooth, there, up to speed, versed, whiz*, wizard |
| Antonyms: | awkward, clumsy, incompetent, inept, unskilled |
| 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: | alert |
| Part of Speech: | adjective |
| Definition: | attentive, lively |
| Synonyms: | active, all ears, bright, cagey, careful, circumspect, clever, fast on the draw, good hands, heads up, heedful, hip, intelligent, jazzed, observant, on guard, on one's toes, on the ball, on the job, on the lookout, on the qui vive, perceptive, psyched up, quick, ready, sharp, spirited, switched on, vigilant, wary, watchful, wide-awake, wired, wise, with it |
| Antonyms: | asleep, drowsy, inattentive, lethargic, sluggish, unobservant, weary |
| Main Entry: | alive |
| Part of Speech: | adjective |
| Definition: | being active, full of life |
| Synonyms: | abounding, alert, animated, awake, brisk, bustling, cheerful, dynamic, eager, energetic, lively, overflowing, quick, ready, replete, rife, sharp, spirited, sprightly, spry, stirring, swarming, teeming, vigorous, vital, vivacious, zestful |
| Antonyms: | dispirited, dull, lifeless, morose, sluggish, spiritless |
| Main Entry: | animated |
| Part of Speech: | adjective |
| Definition: | lively |
| Synonyms: | activated, active, alert, animate, ardent, brisk, buoyant, dynamic, ebullient, elated, energetic, energized, enthusiastic, excited, fervent, gay, happy, passionate, peppy, quick, snappy, spirited, sprightly, vibrant, vigorous, vital, vitalized, vivacious, vivid, zealous, zestful, zingy, zippy |
| Main Entry: | brief |
| Part of Speech: | adjective |
| Definition: | short in time |
| Synonyms: | concise, curtailed, ephemeral, fast, fleeting, hasty, instantaneous, little, meteoric, momentary, passing, quick, short-lived, short-term, swift, temporary, transient, transitory |
| Antonyms: | enduring, lasting, lengthy, long, long-lived |