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ad infinitum

ad infinitum

7 8.8
Going on forever without any limit
  • idiom
  • /æd ˌɪnfɪˈnɪtəm/
  • Formal
translation icon : ad infinitum
  • You jump back from A to B ad infinitum, and it fails to address the question.
  • so on, ad infinitum

When he died, they'll replace him with a video looping on ad infinitum.

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Examples

  • The Organismus just went on dividing and dividing, ad infinitum.

    Fiction book (1993)
  • Leibniz is convinced that extended bodies, by their very nature, can be divided ad infinitum.

    Academic text (1998)
  • Several thousand words, in written format, to be referred back to again ad infinitum, is NOT actual communication?

    Blog text (14)
  • The answer to him repeated ad infinitum should have been: how do you know?

    Blog text (28)
  • I do think I prefer the system here of letting a priest stay ad infinitum.

    Blog text (16)
  • Here he had many years of training and could improvise ad infinitum.

    Fiction book (1995)
  • And the saga could continue from there, ad infinitum.

    Fiction book (1991)
  • The student can carry on ad infinitum requesting questions and responding to them within each lecture.

    Academic text (2011)
  • Reporting in Washington during the eighties has been written about and theorized about ad infinitum.

    Academic text (1991)
  • The conference discussions seemed to go on ad infinitum, with no resolution in sight.

Synonyms

indefinitely
vsad infinitum
104 4.8

For a time with no set end

implies true endlessness rather than merely unspecified duration
endlessly
vsad infinitum
73 2.3

Without stopping for a very long time

is the same idea expressed as a concise phrase
infinitely
vsad infinitum
62 4.8

To a very great degree without any limit

focuses specifically on endless time rather than unlimited degree
eternally
vsad infinitum
53 5.2

For all time without end

expresses the same endless duration in a compact phrase
no end
vsad infinitum
  • Informal
20 7.7

Very much or for a very long time

states literal endlessness rather than informal exaggeration
in perpetuity
vsad infinitum
  • Formal
16 7.8

A time that lasts forever

means endlessly but in a shorter, general phrasing
evermore
vsad infinitum
  • Archaic
3 8.9

Continues for all future time

expresses endless time but in a compact idiomatic form
interminably
vsad infinitum
2 7.6

In a way that goes on for a very long time with no end in sight

states endless continuation more neutrally rather than subjective feeling
forever and a day
vsad infinitum
  • Archaic
1 5.3

For a very long time with no clear end

denotes actual endlessness rather than just seeming long duration
unendingly
vsad infinitum
1 5.8

Without stopping for a long time

is the same sense framed as a short formal phrase
everlastingly
vsad infinitum
1 7.4

In a way that lasts forever

conveys the same endless duration but as a concise expression
boundlessly
vsad infinitum
1 6.3

Without limits or end

limits meaning to endless temporal duration rather than broad extent
limitlessly
vsad infinitum
1 5.6

In a way that has no end or limit

narrows that broad idea to endlessness in time
unto the ages of ages
vsad infinitum
  • Archaic
9.9

For a very long time that never ends

states endlessness more simply without extra ceremonial tone
unboundedly
vsad infinitum
7.5

With no limits, very much or very freely

refers specifically to endless time rather than limitless scope

Antonyms

222 3.2

For a short time and not permanent

56 4.1

A thing that has a limit in amount, size, or time

How Long

ad infinitum
  • Formal
7 8.8
continuously
95 2.3
temporarily
222 3.2
briefly
414 1.0

Surface Forms

ad infinitum positive

Morphology

ad + infinitum

The phrase literally combines Latin 'ad' (to/toward) + 'infinitum' (infinity/endless), yielding 'to infinity' — directly matching the gloss 'endlessly'. Although it is a Latin loan used intact in English, the parts are compositional and cognate with English forms like 'infinite', so a learner who knows the constituents would readily infer the meaning.

Etymology

Ad infinitum comes from Latin. In Latin ad means 'to' and infinitum means 'the infinite', so the phrase gives the image of something that goes on and on and that is why it means 'endlessly' or 'without limit'.