bustling

active, assiduous, bustling, diligent, employed, engaged, hopping, industrious, laborious, occupied, sedulous, tied-up, working

knee-deep, swamped; animated, astir, buzzing, flourishing, happening, humming, lively, thriving, vibrant; absorbed, concentrating, engrossed, focused ( focussed), immersed, intent, preoccupied; alive, functional, functioning, going, living, operating, operational, operative, running; energetic, vigorous; hardworking; indefatigable, tireless, untiring

free; asleep, dormant, latent, lifeless, quiescent, sleepy; inert, passive; dead, dull, slow; inoperative, nonoperating

aboil, abubble, abuzz, animated, astir, brisk, bustling, busy, buzzing, flourishing, happening, hopping, humming, kinetic, lively, rousing, stirring, thriving, vibrant

abounding, crowded, overflowing, populous, swarming, teeming, thronging