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

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ad infinitum British  

/ æd ˌɪnfɪˈnaɪtəm /

adverb

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

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Etymology

Origin of ad infinitum

From Latin

Example Sentences

Film, he did, ad infinitum, particularly enjoying the spy genre in “Tinker Tailor Soldier Spy,” which garnered him his first Oscar nomination as lead actor in 2012, long before Jackson Lamb appeared on his radar.

From Los Angeles Times • Aug. 5, 2025

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

From Slate • Jul. 8, 2025

One takes place and then another one occurs ad infinitum.

From Salon • Mar. 18, 2024

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

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