Longman Dictionary of Contemporary English homepage

Date: 1600-1700
Language: Latin
Origin: 'to an endless length of time'

ad infinitum

 adverb
     
ad in‧fi‧ni‧tum formal
continuing without ever ending - often used humorously:
I have to explain A, then B, and C, and so on ad infinitum.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.
Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary

Browse the dictionary