prolonged

prolonged (http://definr.com/prolonged)

     adj 1: relatively long in duration; tediously protracted; "a
            drawn-out argument"; "an extended discussion"; "a
            lengthy visit from her mother-in-law"; "a prolonged
            and bitter struggle"; "protracted negotiations" [syn:
            drawn-out, extended, lengthy, protracted]
     2: drawn out or made longer spatially; "Picasso's elongated Don
        Quixote"; "lengthened skirts are fashionable this year";
        "the extended airport runways can accommodate larger
        planes"; "a prolonged black line across the page" [syn: elongated,
         extended, lengthened]
     3: of illness; developing slowly or of long duration