abrupt
adjective
°Extremely steep or craggy as if broken up; precipitous.
"Tumbling through ricks abrupt. - Thomson"
°Without notice to prepare the mind for the event; sudden; hasty; unceremonious.
"The cause of your abrupt departure. - Shakespeare, Henry VI Part I, II-iii"
verb
°To tear off or asunder.
°To interrupt suddenly.
noun
°Something which is abrupt.
synonyms: broken, rough, rugged, brusque more» , sudden, blunt, disconnected, unexpected