unmanageable

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"

hard to control; "a difficult child", "an unmanageable situation"

difficult to solve or alleviate; "uncontrollable pain"

incapable of being controlled or managed; "uncontrollable children"; "an uncorrectable habit"