名詞 abruptness:

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