Overlong \O"ver*long"\, a. & adv. Too long. --Shak. [1913 Webster]
21 Moby Thesaurus words for "overlong": dragging, drawn-out, extended, interminable, languishing, lasting, lengthened, lengthy, lingering, long, long-continuing, long-drawn, long-drawn-out, long-pending, long-winded, longsome, marathon, prolonged, protracted, spun-out, stretched-out