Was heißt »schlagartig« auf Englisch?

Das Adjektiv schlagartig lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Deutsch/Englische Beispielübersetzungen

Die etruskische Sprache und Kultur verschwanden während des ersten vorchristlichen Jahrhunderts schlagartig.: The Etruscan language and culture disappeared rapidly during the 1st century B.C.
Die Xinhai-Revolution 1911 in China zeichnete den Umsturz der Qing-Dynastie und beendete schlagartig 2000 Jahre beinahe ununterbrochener dynastischer Herrschaft.: China's 1911 Xinhai revolution marked the overthrow of the Qing dynasty and abruptly ended 2000 years of almost uninterrupted dynastic rule.

It suddenly dawned on Tom that he'd been doing it wrong all along.
At the age of 55, Tom suddenly decided that he wanted to become an artist.
I braked suddenly.
Tom suddenly started to cry.
It suddenly occurred to Tom that his car keys weren't in his pocket.
Tom passed away quite suddenly.
My computer suddenly stopped working.
Tom was abruptly woken from his slumber by loud banging on the front door.
Tom suddenly lost consciousness.
Can people really be as silly as to believe that the whole population of Georgia, which speaks a Caucasian language with no common sound or common letter with English, can suddenly be fluent in English within two years?
Tom suddenly realised that what he was doing was very dangerous.
The old person suddenly started talking to me.
It happened suddenly.
Why did Tom leave so suddenly?
It all ended as suddenly as it started.
I suddenly realized that my watch was gone.
Tom was suddenly very happy.
Then the doll's eyes began to shine like fireflies, and suddenly it became alive.
She suddenly became angry.
Tom suddenly got incredibly nervous.