active

adj

1. busy, on the go, occupied, engaged, employed, working, at it, Inf. on the move, Inf. up and doing; moving, kinetic, motive, on the wing, volitant, stirring, astir, up and about or around; bustling, hustling, restless, commotive, Inf. hyper; diligent, assiduous, industrious, hard-working, Sl. on the stick; zealous, sedulous, studious, persevering; indefatigable, tireless, untiring, unremitting, unwavering.

2. functioning, operative, working, running, ticking, in progress or motion, in operation, in effect, in force, in play; alive, existent, existing, extant, actual, ongoing; current, present, in the here and now, Archaic. instant.

3. energetic, energetical, vibrant, full of verve, vital, lively, full of life, Chiefly U.S. Inf. chipper; vivacious, sprightly, sprightful, jumping, hopping, swinging, vivid, animated, spirited, Sl. go-go; vigorous, robust, hardy, hearty, brisk, Scot, and North Eng. yauld; strenuous, exertive, laborious, physical.

4. nimble, agile, spry, volant, well-coordinated, Brit. Dial. wight, Music. volante; fleet, fleet-footed, rapid, quick, speedy, swift, ready, prompt, alert.

5. productive, producing, generative, creative, fertile, fecund, prolific; prosperous, thriving, flourishing, growing, booming; profitable, self-sustaining, in the black.

6. effectual, effective, efficacious, causative, potent, puissant, powerful, strong, forceful, forcible; influential, enterprising, up-and-coming; ambitious, aggressive, assertive, pushing, forward, officious, Inf. pushy.

7. reactive, eruptive, explosive, volatile, violent, drastic.

8. practical, applied, nontheoretical, nontheoretic, functional, functionalistic, utilitarian, useful, down to earth; useable, serviceable, practicable, workable, feasible, operable