definition of
abruptness

[1] #1 abruptness n. [brusqueness, curtness, gruffness, shortness] an abrupt discourteous manner. wn

[2] #2 abruptness n. [precipitousness, steepness] the property possessed by a slope that is very steep. wn

[3] #3 abruptness n. [precipitateness, precipitousness, precipitance, precipitancy, suddenness] the quality of happening with headlong haste or without warning. wn