ad infinitum

/ˌˈæ ˈdɪnfəˌnaɪdəm/

The adverb ad infinitum is a useful way to describe something that goes on forever, like a child attempting to count to a million.

You can talk about something that is literally infinite using ad infinitum: "The universe goes on ad infinitum." A more figurative use is for things that only seem to last ad infinitum, like the song "Ninety-nine Bottles of Beer on the Wall," or an incredibly boring graduation speech. The literal meaning of the Latin ad infinitum is "to infinity."

Definitions of ad infinitum

1. adverb

   to infinity; without or seemingly without limit
   “talked on and on ad infinitum”