abruptswitch
nounUK /əˈbrʌpt swɪtʃ/
US /əˈbrʌpt swɪtʃ/
A sudden change from one thing to another without any warning.
The abruptswitch from sunshine to rain caught everyone at the picnic by surprise.
OTHER MEANINGS
2. A quick flip of a switch that happens all at once.
With an abruptswitch, the lights went from bright to dark.
3. A sudden change in a story or plan that surprises people.
The movie's abruptswitch from comedy to mystery confused the audience.
4. A sudden change in someone's mood or behavior.
His abruptswitch from laughing to shouting worried his friends.