instantaneousness
immediacy
instancy
immediateness
fastness
rain
pelting
active
quick off the mark
fruit
resolute
impulsive
unhesitating
abruptness
expedience
quick on the draw
speed
lick and a promise
actualistic
precipitation
stampede
suddenliness
rapidity
quicksome
expressness
accelerate
fly
quick
hobble
slow-moving
burst
play
jerksome
slowth
brief
rapidness
acturience
velocity
speediness
quickness
clinch
tripping
momentaneity
take time by the forelock
rip
mincing
-ation
drastic
rise
sluggishness
precipitancy
at a clip
stound
quickwittedness
momentful
ready
dispatch
legerity
plodding
slowsome
hurried
leaden
rushy
rush
aspontaneity
velocitous
subitaneousness
momentariness
quick-wittedness
hasty
shortly
blow
overnight
gallop
stroke
suddenly
slow off the mark
make hay while the sun shines
dapper
time-lapse
speedy
hurriedness
-ure
run
make it snappy
portentous
haste
hastiness
deattenuation
prodigious
principle of least action
slowness
hurry