unmanageable
     adj 1: difficult to use or handle or manage because of size or
            weight or shape; "we set about towing the unwieldy
            structure into the shelter"; "almost dropped the
            unwieldy parcel" [syn: {unwieldy}] [ant: {wieldy}]
     2: difficult to manage or control [ant: {manageable}]
     3: difficult to solve or alleviate; "uncontrollable pain" [syn:
         {uncontrollable}]
     4: not susceptible of improvement; "uncontrollable children";
        "an uncorrectable habit" [syn: {uncontrollable}, {uncorrectable}]
Source: WordNet® 2.0