Having no end. / Extending indefinitely. / (obsolete) Without profitable end; fruitless; unsatisfying.

The state or characteristic of being endless.

plural of endlessness

(Internet slang) Synonym of Eternal September

plural of endless runner

(video games) A style of platform game in which the player character runs non-stop through a hazardous course, and must be guided to jump, duck, etc. to avoid the hazards.

plural of endless screw

An arrangement for producing slow motion in machinery, consisting of a screw whose thread gears into a wheel with skew teeth.

bandsaw

plural of endless saw