abruptness

noun

1.
an abrupt discourteous manner
brusqueness curtness gruffness shortness
Derived from:
abrupt
2.
the property possessed by a slope that is very steep
precipitousness steepness
Antonym:
gradualness
Derived from:
abrupt
3.
the quality of happening with headlong haste or without warning
precipitance precipitancy precipitateness precipitousness suddenness
Derived from:
abrupt