ad infinitum

UK: /ˌædɪnfɪˈnaɪtəm/

US: /ˌæd ɪnfəˈnaɪtəm/

US: (ad in′fə nī′təm, ad′ in-)

WordReference Random House Learner's Dictionary of American English © 2026

ad in•fi•ni•tum /ˌæd ɪnfəˈnaɪtəm/  adv. 

1. Foreign Terms to infinity;
   endlessly;
   without limit.

WordReference Random House Unabridged Dictionary of American English © 2026

ad in•fi•ni•tum  (ad in′fə nī′təm, ad′ in-), 

1. Foreign Terms to infinity;
   endlessly;
   without limit.

• Latin

Collins Concise English Dictionary © HarperCollins Publishers::

ad infinitum / æd ˌɪnfɪˈnaɪtəm/ adverb

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

Etymology: Latin