ad infinitum again and again at a stretch boresomely boringly ceaselessly connectedly constantly continually continuously cumulatively cyclically drearisomely dully endlessly equably evenly everlastingly fatiguingly harpingly in a rut incessantly interminably irksomely on a stretch on and on on end perennially repetitively round the clock routinely tediously tiresomely together unbrokenly unceasingly uniformly unintermittently uninterruptedly unrelievedly unvaryingly wearisomely wearyingly without a break without cease without stopping