ritardare betyder på engelska

hinder [hindered, hindering, hinders]▼(to keep back; to delay or impede)
verb
[UK: ˈhɪn.də(r)] [US: ˈhɪn.dər]

hold off▼(to delay someone or something)
verb
[UK: həʊld ɒf] [US: hoʊld ˈɒf]

hold up▼(to wait or delay)
verb
[UK: həʊld ʌp] [US: hoʊld ʌp]

procrastinate [procrastinated, procrastinating, procrastinates]▼(put off; delay something)
verb
[UK: prəʊ.ˈkræ.stɪ.neɪt] [US: proʊ.ˈkræ.stɪ.neɪt]