"abrupt" in the adjective sense
1. abrupt, disconnected
marked by sudden changes in subject and sharp transitions
"abrupt prose"
2. abrupt
exceedingly sudden and unexpected
"came to an abrupt stop"
"an abrupt change in the weather"
3. abrupt, precipitous, sharp
extremely steep
"an abrupt canyon"
"the precipitous rapids of the upper river"
"the precipitous hills of Chinese paintings"
"a sharp drop"
4. abrupt
surprisingly and unceremoniously brusque in manner
"an abrupt reply"
Source: WordNet® (An amazing lexical database of English)
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