Continual should only mean "occurring at regular intervals," they insist, whereas continuous should be used to mean "continuing without interruption." This distinction overlooks the fact that continual is the older word and was used with both meanings for centuries before continuous appeared on the scene.

How do you use continuous and continual?

Continual means repeated but with breaks in between; chronic. Example: The continual problem of our car's not starting forced us to sell it. Continuous means without interruption in an unbroken stream of time or space. Example: The continuous dripping of the faucet drove me crazy.

Is it continuous or continual improvement?

Continuous improvement, sometimes called continual improvement, is the ongoing improvement of products, services or processes through incremental and breakthrough improvements. These efforts can seek "incremental" improvement over time or "breakthrough" improvement all at once.