Definition of abrupt adjective from the Oxford Advanced Learner's Dictionary
abrupt
adjective
əˈbrʌpt əˈbrʌpt
1sudden and unexpected, often in an unpleasant wayan abrupt change/halt/departureThe accident brought his career to an abrupt end.2speaking or acting in a way that seems unfriendly and rude; not taking time to say more than is necessary
Synonym
brusque, curtan abrupt mannerShe was very abrupt with me in our meeting.abruptly