Adverb
In an abrupt manner; without giving notice, or without the usual forms; suddenly.
Precipitously.
Source: Webster's dictionaryIt is almost a general rule that nations do not decline gradually. Instead they fall abruptly from their greatest heights. Pierre Stephen Robert Payne
In my childhood, America was like a religion. Then, real-life Americans abruptly entered my life - in jeeps - and upset all my dreams. Sergio Leone
Not everything has a happy ending, and not everything has an ending. Some things just kind of dribble away or cut off abruptly. Susanna Kaysen
In whatever kind of a "race" life may be, I have very abruptly become a finalist. Christopher Hitchens
She may be mad, he realizes abruptly. Not clinically insane, just at odds with the entire universe. Locked into a pathological view of her own role in reality. Charles Stross
I work very deliberately, with a plan. But sometimes I come to a point that I planned as the end and it needs softening. Ending a novel is almost like putting a child to sleep - it can't be done abruptly. Colm Tóibín