worrying

wor‧ry‧ing S3 / wʌri-ɪŋ $ wɜ- / 形容词

something that is worrying makes you feel anxious or worried :

The situation is extremely worrying.

This is a worrying development for small businesses.

It’s been a worrying few weeks for us all.

— worryingly 副词 :

Levels of some pollutants are worryingly high.