worryingchange

noun
UK /ˈwʌriɪŋ tʃeɪndʒ/
US /ˈwɜːriɪŋ tʃeɪndʒ/

A change that makes you feel scared or nervous.

The big worrying change at school made the children feel uneasy.


OTHER MEANINGS

2. A shift in a situation that causes people to feel anxious about what will happen next.

The worrying change in the weather made the farmers nervous about their crops.

3. An unexpected difference that makes someone feel afraid or unsure.

There was a worrying change in his voice that made his mother call the doctor.

4. A change that seems bad or dangerous and makes people feel troubled.

The worrying change in the team's performance upset the coach.