ad infinitum
adverb or adjectiveDefinition of ad infinitum
: without end or limit
Keep scrolling for more
Keep scrolling for more
Test Your Vocabulary
Which Word Does Not Belong?
-
- Which of these words does not mean "nonsense"?

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share ad infinitum
Time Traveler for ad infinitum
The first known use of ad infinitum was in 1581
See more words from the same year