disposable(that is designed to be discarded rather than refilled or repaired) adjective [UK: dɪ.ˈspəʊ.zəb.l̩] [US: dɪˈspo.ʊ.zəb.l̩]They're disposable. = Sono monouso.
throw-away(designed to be thrown away) adjective [UK: ˈθrəʊ ə.ˈweɪ] [US: ˈθroʊ ə.ˈweɪ]