| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | energetic, active, busy |
| Synonyms: | agile, alert, animate, animated, astir, blithe, blithesome, bouncy, bright, brisk, buoyant, bustling, buzzing, cheerful, chipper, chirpy, complex, dashing, driving, effervescent, enjoyable, enterprising, entertaining, festive, frisky, frolicsome, full of pep, gay, go-go, happy, hyper, industrious, involved, jocund, jumping, keen, merry, nimble, peppy*, perky, pert, provocative, quick, refreshing, rousing, snappy, sparkling, spirited, sprightly, spry, stimulating, stirring, vigorous, vivacious, zippy |
| Antonyms: | apathetic, dispirited, inactive, lethargic, lifeless, sleepy |
| Main Entry: | nimble |
| Part of Speech: | adjective |
| Definition: | dexterous, smart |
| Synonyms: | active, adept, adroit, agile, alert, bright, brisk, clever, deft, handy, light, lissome, lithe, lively, proficient, prompt, quick, quick-witted, ready, skillful, sprightly, spry, swift, vigilant, wide-awake |
| Antonyms: | awkward, clumsy, lumbering, slow, undexterous, unhandy |
| Main Entry: | perky |
| Part of Speech: | adjective |
| Definition: | animated, happy |
| Synonyms: | active, alert, aware, bouncy, bright, bright-eyed and bushy-tailed, brisk, bubbly, buoyant, cheerful, cheery, gay, in fine fettle, jaunty, lively, spirited, sprightly, sunny, vivacious |
| Antonyms: | depressed, gloomy |
| Main Entry: | pert |
| Part of Speech: | adjective |
| Definition: | lively, bold |
| Synonyms: | animated, audacious, brash, brazen, breezy, bright, brisk, cheeky*, dapper, daring, dashing, disrespectful, flip*, flippant, forward, fresh, gay, impertinent, impudent, insolent, jaunty, keen, nervy, perky, presumptuous, sassy*, saucy*, smart, smart-alecky, spirited, sprightly, vivacious, wise |
| Antonyms: | dull, humble, lifeless |
| Main Entry: | prompt |
| Part of Speech: | adjective |
| Definition: | early, responsive |
| Synonyms: | alert, apt, brisk, eager, efficient, expeditious, immediate, instant, instantaneous, on the ball, on the button, on the dot, on the nose, on time, precise, punctual, quick, rapid, ready, smart, speedy, swift, timely, unhesitating, vigilant, watchful, wide-awake, willing |
| Antonyms: | late, negligent, slow, tardy |
| 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: | rapid |
| 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: | rousing |
| Part of Speech: | adjective |
| Definition: | stirring |
| Synonyms: | active, alert, animated, astir, bouncy, bright, brisk, buoyant, bustling, busy, buzzing, chirpy, dashing, energetic, enthusiastic, frisky, full of pep, hyper, industrious, jumping, lively, peppy*, perky, refreshing, snappy, spirited, spry, stimulating, vigorous, zippy |
| Main Entry: | sharp |
| Part of Speech: | adjective |
| Definition: | having strong affect on animate senses |
| Synonyms: | acerbic, acid, acrid, active, astringent, austere, bitter, brisk, burning, harsh, hot, lively, odorous, piquant, pungent, sour, strong-smelling, suffocating, tart, vigorous, vinegary |
| Antonyms: | bland, calm, dull, flat, low, mild, moderate, tasteless |