without warning

But in February last year - without warning - the previous Conservative government changed eligibility rules so only British or Irish citizens or those with the right to live in the UK permanently could act as sponsors.

And yet, vitamin B6 supplements are sold without prescription and without warning at every pharmacy or health food store or grocery, with no regard to the delicate balance by which we naturally regulate the amounts of this vitamin we get from our diets.

Employers might be notified of a visit, or it could happen without warning.

A raid is when ICE agents arrive at a work site without warning the employer.

Experts advise humans not to interact with animals believed to be sick because they might bite or lunge without warning.