infamous(having a bad reputation) adjective [UK: ˈɪn.fə.məs] [US: ˈɪn.fə.məs]Year 2011's most infamous expression is Kebab murders. = L'espressione del 2011 più famigerata è Omicidi del kebab.
notorious(known widely and infamously) adjective [UK: nəʊ.ˈtɔː.rɪəs] [US: noʊ.ˈtɔː.rɪəs]Blackbeard was a notorious English pirate. = Barbanera era un famigerato pirata inglese.