interminable Synonyms

endless unbounded infinite unlimited eternal limitless illimitable immeasurable boundless relentless unrelenting eonian unbroken perpetual persistent timeless sustained sumless prolonged protracted steady shoreless sesquipedalian sesquipedal unremitting untold unrelieved long-drawn-out dragged out uncountable uncounted long-term long-life unmeasured drawn-out nonstop around the clock never-ending unending unceasing uninterrupted unendable wordy seemingly endless overlong ongoing aeonian extensive extended exhaustless