a.
1.
Active, agile, nimble, supple, brisk, alert, quick, stirring, smart, vigorous, vivacious, energetic.
2.
Animated, spirited, sprightly, vivacious, airy, gay, blithe, blithesome, gleeful, jocund, buoyant, joyous, frolicsome, buxom, jolly.
3.
Living, lifelike.
4.
Vivid, bright, brilliant, fresh, glowing, strong, clear.
5.
Vigorous, forcible, strong, energetic, keen, nervous, glowing, sparkling, racy, piquant, impassioned.