sudden
US /ˈsʌd.ən/
UK /ˈsʌd.ən/

1.
plötzlich, unerwartet
occurring or done quickly and unexpectedly or without warning
:
•
There was a sudden change in the weather.
Es gab eine plötzliche Wetteränderung.
•
He made a sudden decision to quit his job.
Er traf eine plötzliche Entscheidung, seinen Job zu kündigen.