#1 abruptness n. [brusqueness, curtness, gruffness, shortness] an abrupt discourteous manner. wn
#2 abruptness n. [precipitousness, steepness] the property possessed by a slope that is very steep. wn
#3 abruptness n. [precipitateness, precipitousness, precipitance, precipitancy, suddenness] the quality of happening with headlong haste or without warning. wn
vizzz