(n.) Physical or mental strength and health; power to live and thrive\; vital force; animation; as, the vitality of eggs or vegetable seeds; the vitality of an enterprise.

alacrity amperage animal spirits animate existence animation anxiety anxiousness appetite armipotence authority avidity avidness beef being alive birth bite bitingness black power breathless impatience brute force capersomeness charge charisma cheerful readiness clout cogence cogency cohesiveness coltishness compulsion cuttingness decisiveness demonic energy dint drive durability duress dynamism eagerness effect effectiveness effectuality elan endurance energy ergal esprit existence exuberance flower power force force majeure forcefulness fortitude forwardness friskiness frolicsomeness full blast full force gaiety gamesomeness gayness get-up-and-go gust gusto guts gutsiness haleness hardiness hardness having life heartiness immortality impatience impressiveness incisiveness influence infrangibility intensity intestinal fortitude keen desire keenness kinetic energy lastingness leatherlikeness life lifetime liveliness living long life longevity lustihood lustiness main force main strength mana might might and main mightiness mordancy moxie muscle power nervosity nervousness obstinacy oomph pep piss and vinegar pizzazz playfulness poignancy poop potence potency potential energy potentiality power power pack power structure power struggle powerfulness prepotency productiveness productivity promptness puissance pull punch push quickness readiness resistance robustness rollicksomeness rompishness ropiness ruggedness sinew sinewiness skittishness sparkle spirit spiritedness spirits sportiveness sprightliness spriteliness stalwartness stamina staying power steam sticking power stiffness stoutness strength strength of will strenuousness stringiness strong arm strong language stubbornness sturdiness superiority superpower tenacity toughness trenchancy unbreakability unbreakableness validity vehemence verve viability vigor vigorousness vim virility virtue virulence viscidity vivaciousness vivacity wattage weight zest zestfulness zing zip