worsen

v. empeorar, agravar, desmejorar; empeorarse, acentuarse, agravarse, agudizarse, recrudecer

arreciar | recrudecer | intensificar | cobrar fuerza (tormenta) | empeorar | desmejorar | deteriorar | degradar | agravar | exacerbar

Ex: There were fears that opening on holidays would worsen the overall quality of the service provided and lead to higher staff turnover.

(v.) = empeorar, agudizar
Ex: There were fears that opening on holidays would worsen the overall quality of the service provided and lead to higher staff turnover.