peggiorare znamená v Angličtina

slip [slipped, slipping, slips]▼(to worsen)
verb
[UK: slɪp] [US: sˈlɪp]

worsen [worsened, worsening, worsens]▼(transitive: make worse)
verb
[UK: ˈwɜː.sən] [US: ˈwɝː.sən]The situation worsened. = La situazione peggiorò.