Similar word to interminable:
boring, boundless, ceaseless, constant, continuous, day-and-night, dragged out, dull, endless, eternal, everlasting, immeasurable, incessant, interminate, limitless, long, long-drawn-out, long-winded, looped, never-ending, no end of, no end to, on a treadmill, perman
boring, boundless, ceaseless, constant, continuous, day-and-night, dragged out, dull, endless, eternal, everlasting, immeasurable, incessant, interminate, limitless, long, long-drawn-out, long-winded, looped, never-ending, no end of, no end to, on a treadmill, perman