adaptability, adjustability, airiness, alterability, backfire, backlash, backlashing, boomerang, bounce, bounciness, bound, breeziness, buoyance, buoyancy, carefreeness, carom, changeability, changeableness, changefulness, chirpiness, contrecoup, debonairness, elasticity, extensibility, flexibility, fluidity, give, impermanence, jauntiness, kick, kickback, levity, light heart, lightheartedness, lightness, lightsomeness, liveliness, malleability, mobility, modifiability, movability, mutability, nonuniformity, perkiness, permutability, pertness, plasticity, rebound, rebuff, recalcitration, recoil, repercussion, repulse, resiliency, responsiveness, ricochet, rubberiness, snap, spring, springiness, stretch, stretchability, stretchiness, suppleness, tone, tonicity, tonus, transience, transitoriness