celerity
rapidity
speed
swiftness
velocity
quickness
rapidness
speediness
adroitness
agility
alertness
aptness
cleverness
deftness
dexterity
docility
ductility
elasticity
erectness
flightiness
lightness
litheness
nimbleness
pliancy
precocity
slightness
stamina
suppleness
sureness
tipper
unexpectedness
versatility