endless, tiresome, tedious, unending, excruciating, wearisome, overlong, agonizing, torturous, exhausting, turgid, desultory, tortuous, soporific, purgatorial, ponderous, pointless, insufferable, enervating, sisyphean, banal, unendurable, lengthy, monotonous, overstuffed, incessant, dreary, ceaseless, exasperating, joyless, irksome, winded, breathless, obligatory, protracted, perfunctory, unilluminating, stultifying, maddening, arduous, trite, overwrought, prolonged, laborious, nauseating, unedifying, leaden, superfluous, dull, farcical, inglorious, purposeless, inevitable, talky, unrelieved, lachrymose, pedantic, torpid, insipid, bloviation, fatuous, humdrum, labyrinthine, convoluted, unsatisfying, boring, weary, hackneyed, uninteresting, overdetermined, stilted, fruitless, unenjoyable, onanistic, execrable, mirthless, infernal, witless, lugubrious, aimless, unentertaining, overfamiliar, digressive, uninspired, bathetic, passionless, umpteenth, unfruitful, portentous, vacuous, unenlightening, inelegant, drear, foetid, longwinded, dunderheaded, eventless, otiose, elongated, ad infinitum, futile, wretched, long, neverending, racking, longest, profitless, suspenseful, acrimonious, frustrating, agonising

eternal