abrupt abrupt /əˈbrʌpt/

adjective

1. () Marked by sudden changes in subject and sharp transitions  ( disconnected , abrupt )
   marked by sudden changes in subject and sharp transitions
    Abrupt prose
   abrupt prose
   
2. () Exceedingly sudden and unexpected  ( abrupt )
   exceedingly sudden and unexpected
    Came to an abrupt stop
   came to an abrupt stop
    An abrupt change in the weather
   an abrupt change in the weather
   
3. Surprisingly and unceremoniously brusque in manner  ( abrupt )
   surprisingly and unceremoniously brusque in manner
    An abrupt reply
   an abrupt reply
   
4. Extremely steep  ( abrupt , precipitous , sharp )
   extremely steep
    An abrupt canyon
   an abrupt canyon
    The precipitous rapids of the upper river
   the precipitous rapids of the upper river
    The precipitous hills of Chinese paintings
   the precipitous hills of Chinese paintings
    A sharp drop
   a sharp drop