the.com/sudden
Reality declining to send a calendar invite before it happens.
means Happening quickly and without warning, leaving no time to prepare or react.
from From Latin subitus, past participle of subire, to steal up on — literally to come up from below, like an ambush.
Buried idiomAll of a sudden once meant truly all at once.
Legal weightSudden death and sudden impulse carry real courtroom consequences.
Tiebreak twinSudden death decides games with zero second chances.