abruptness
alacrity
expeditiousness
feverishness
furiousness
haste
hastiness
hurriedness
impatience
impetuosity
impetuousness
impulsiveness
inexpectation
overhastiness
precipitance
precipitancy
precipitateness
precipitation
precipitatousness
precipitousness
promptness
quickness
rashness
recklessness
speed
swiftness
unanticipation
unexpectedness
hurry
agility
boldness
brevity
celerity
certainty
clarity
directness
distinctness
ferocity
intensity
lucidity
realization
strangeness
urgency
vehemence
vigour
vividness
wildness