Thesaurus.com
Dictionary.com
Showing results for ad infinitum. Search instead for Adinfinitum.
Definitions

ad infinitum

[ad in-fuh-nahy-tuhm, adin-] / æd ˌɪn fəˈnaɪ təm, ˌædɪn- /
ADJECTIVE
neverending
Synonyms
WEAK
ceaselessly endlessly forever perpetually
ADJECTIVE
to infinity
Synonyms
WEAK
at length continuously endlessly forever having no end in perpetuity interminably never-ending on and on perpetually relentlessly unlimitedly without end without limit
ADVERB
to infinity
Synonyms
WEAK
at length continuously endlessly forever having no end in perpetuity interminably never-ending on and on perpetually relentlessly unlimitedly without end without limit
ad-infinitum
ADJECTIVE
neverending
Synonyms
WEAK
ceaselessly endlessly forever
Antonyms
WEAK
ceasing ending halting intermittent interrupted

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

From Slate • Jul. 8, 2025

A long game of phone tag ensued with assistant reaching out to assistant ad infinitum until eventually Cooper was contacted and he happened to be nearby.

From Los Angeles Times • Nov. 1, 2023

It looked like it would go on that way ad infinitum.

From Salon • Apr. 10, 2023

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