Abrupt
Sudden
Synonyms: Sudden, instantaneous, hasty, swift, speedy, unexpected, startling, unforeseen, violent, breakneck, immediate, hurried, quick, rapid, precipitate, surprising, unanticipated, without warning, headlong, and meteoric.
Curt
Synonyms: Curt, blunt, sharp, brisk, gruff, snappy, offhand, rough, rude, uncivil, churlish, no-nonsense, laconic, brusque, short, terse, crisp, snappish, unceremonious, cavalier, harsh, discourteous, surly, bluff, to the point, and off.
Jerky
Steep
Example Sentences
The meeting ended with an abrupt announcement.
She made an abrupt turn and surprised everyone.
His abrupt departure left everyone confused.
The change in weather was abrupt and harsh.
The conversation took an abrupt shift in tone.