rapid fire
brief
fleeting
soon
fast
⠟⠅
quicklike
fastly
just a second
deliberate
jiffy
lickety-split
snappy
in a jiffy
smartish
nimble-witted
keen-witted
quicksmart
very fast
like a chicken on a June bug
submillisecond
in no time
flash
tripping
small
quick
quickly
promptly
swift
one moment
hotfoot
larghissimo
before you can say Jack Robinson
andante
quickish
just a minute
before you can say knife
by and by
in the near future
slowish
unquick
nimble
umbestound
lento
agile
spry
downtempo
jildi
one-two-three
earliest
one-handed
chop-chop
pokey
smartly
pell-mell
brady-
soonest
momentaneous
in nothing flat
fastest
quickest
snatch
headlong
overnight
hand over hand
hasty
forthright
momentary
instantaneous
microscopic
fugitive
slow
slowsome
prompt
passing
fugacious
extended
drawn-out
ephemeral
short-lived
high-tempo
transient
lengthy
protracted
velocitous
zippy
prolonged
scuttle
transitory
allegretto
before one knows where one is