by surprise

The move did not feature in Labour's election manifesto and the move, announced three weeks after its return to power, caught many MPs by surprise.

The nomination of McMahon, a major Republican donor, caught many education experts by surprise.

The sexual assault accusation from 2017 quickly resurfaced, with Trump transition team members admitting that it caught them by surprise.

The pair took their legions of fans by surprise when they announced their split.

That’s when the military began a big push to find codebreakers to make sure the country wouldn't be taken by surprise again.