ad infinitum

American  

[ad in-fuh-nahy-tuhm, adin-] / æd ˌɪn fəˈnaɪ təm, ˌædɪn- /

adverb

1. to infinity; endlessly; without limit. ad inf., ad infin

---

ad infinitum British  

/ æd ˌɪnfɪˈnaɪtəm /

adverb

1.  ad inf.  without end; endlessly; to infinity

---

Etymology

Origin of ad infinitum

From Latin

Example Sentences

But is it the best way to spent $600 million–plus in taxpayer dollars, every year, ad infinitum?

From Slate • Jul. 8, 2025

Depending on the initial placement of the constituent cells, their clusters can showcase surprisingly complex behaviors such as self-replication ad infinitum.

From Scientific American • Apr. 6, 2023

This assembly, from metatiles to supertiles to supersupertiles, ad infinitum, covered “larger and larger mathematical ‘floors’ with copies of the hat,” Dr. Kaplan said.

From New York Times • Mar. 28, 2023

For institutions like the news media, bad habits die again and again and again ad infinitum until the lesson is learned too late.

From Salon • Mar. 18, 2023

Flies with heads and tails make eggs with heads and tails, which make embryos with heads and tails, which grow into flies with heads and tails, and so forth, ad infinitum.

From "The Gene" by Siddhartha Mukherjee