Good versus evil, light versus dark, a snake eats its own tail, ad infinitum.
As the atoms are eternal and uncaused, so is motion; it has its origin in a preceding motion, and so on ad infinitum.
There have been republics (so-called) ad infinitum and ad nauseam.
So the frontier dispute dragged on ad infinitum till the British Consul left it to settle itself, and went back to Tabriz.
Every mechanical cause has its cause in turn, and so ad infinitum.
Some have single bases, a round on a square, or vice vers, and so on ad infinitum.
And so on, ad infinitum; it is enough to give the hint for the play.
She would arouse at first a very few, and then a few more, and a few more, and so on ad infinitum.
Fall in, and you are expected to stay in, ad infinitum, ad nauseam.
But why could we not also suppose a third duty, commanding us to observe the former, and so ad infinitum?