surprisingly and unceremoniously brusque in manner; "an abrupt reply"
marked by sudden changes in subject and sharp transitions; "abrupt prose" (同)disconnected
extremely steep; "an abrupt canyon"; "the precipitous rapids of the upper river"; "the precipitous hills of Chinese paintings"; "a sharp drop" (同)precipitous, sharp
exceedingly sudden and unexpected; "came to an abrupt stop"; "an abrupt change in the weather"
in a radical manner; "she took a radically different approach"
happening without warning or in a short space of time; "a sudden storm"; "a sudden decision"; "a sudden cure"
happening unexpectedly; "suddenly she felt a sharp pain in her side" (同)all_of_a_sudden, of a sudden