Synonyms and related words :
activity, adaptability, alacrity, animal spirits, animate existence, animation, anxiety, anxiousness, appetite, ardency, ardor, avidity, avidness, being alive, birth, bite, bounce, bounciness, breathless impatience, breeziness, brio, briskness, bubbliness, buoyance, buoyancy, capersomeness, cheerful readiness, coltishness, dash, eagerness, ebullience, ecstasy, effervescence, elan, elasticity, energy, enthusiasm, esprit, excitement, existence, extensibility, exuberance, fervency, fervidness, fervor, fire, flexibility, forwardness, friskiness, frolicsomeness, furor, fury, gaiety, gamesomeness, gayness, ginger, give, glow, gust, gusto, guts, having life, heart, heartiness, heat, hotness, immortality, impassionedness, impatience, impetuosity, impetus, joie de vivre, keen desire, keenness, kick, life, lifetime, living, long life, longevity, lustiness, mettle, moxie, nip, nippiness, passion, passionateness, pep, pepperiness, peppiness, perkiness, pertness, piquancy, piss and vinegar, pizzazz, playfulness, poignancy, promptness, punch, pungency, quickness, raciness, readiness, rebound, relish, resilience, resiliency, responsiveness, robustness, rollicksomeness, rompishness, savor, skittishness, snap, snappiness, soul, sparkle, spice, spiciness, spirit, spiritedness, spirits, sportiveness, sprightliness, spring, springiness, spriteliness, stretch, stretchability, stretchiness, tang, tanginess, tone, tonicity, tonus, vehemence, verve, viability, vigor, vim, vitality, vivaciousness, vivacity, vividness, warmth, warmth of feeling, zeal, zest, zestfulness, zip