make matters worse
US /meɪk ˈmætərz wɜrs/
UK /meɪk ˈmætərz wɜrs/

1.
piorar as coisas, agravar a situação
to make a bad situation even more unpleasant or difficult
:
•
To make matters worse, it started raining heavily as soon as we left.
Para piorar as coisas, começou a chover forte assim que saímos.
•
His rude comments only served to make matters worse during the tense meeting.
Seus comentários rudes só serviram para piorar as coisas durante a reunião tensa.