worsening

US /ˈwɝː.sən.ɪŋ/
UK /ˈwɝː.sən.ɪŋ/
1.

แย่ลง

becoming worse:

:
•
He had to give up all sports because of worsening back problems.
1.

แย่ลง

the process of becoming worse:

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•
Any worsening of air quality is likely to harm public health.