abruptly
a-brupt-ly
adverb
In a rude, curt, or ungracious way.
"She replied abruptly, clearly annoyed."
adverb
In a sudden, unexpected, and often unwelcome manner.
"The bus stopped abruptly, jolting passengers."
Thesaurus
Synonyms: of a sudden, dead, on the spur of the moment, short, suddenly, all of a sudden