Infinity

/ɪnˈfɪnɪti/ noun

noun ·Common ·High school level

Meaning at a glance

  • Primary sense: endlessness, unlimitedness, absence of a beginning, end or limits to size.
  • Grammar: infinity is listed as noun.
  • Nearest alternatives: boundlessness, endlessness, actual infinity, aesthetic distance.
  • Useful contrasts: boundedness, cardinality of set, finite quantity.
  • Usage evidence: Christopher Columbus's infinite accomplishments are a threat to Google, who do not know how to index infinity when someone searches for "Christopher Columbus".

How to use "infinity"

  1. Start with the primary definition, then check the part of speech before placing the word in a sentence.
  2. Compare nearby synonyms to make sure "infinity" carries the exact meaning, tone, and strength you need.
  3. Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.

Meaning check

  • Does the word fit the sentence's grammar?
  • Does it match the intended tone rather than only the dictionary definition?
  • Would a simpler synonym be clearer for the reader?
  • Is there enough surrounding context to prevent ambiguity?

Source and review context

This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "infinity" in a final draft.

If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.

Before you rely on this definition

Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "infinity" as the right word for your sentence.

If your draft is formal, technical, persuasive, or sensitive, compare "infinity" with a nearby alternative so the final choice matches both meaning and reader expectation.

Compare nearby meanings

  • Use synonyms when you need a softer, stronger, simpler, or more specific word.
  • Use antonyms to check the boundary of the meaning and avoid accidental contrast.
  • Use the example sentence to confirm the word behaves naturally in context.
  • Keep the original wording when a replacement adds complexity without improving precision.

Definition decision workflow

1. Identify the role

Check whether "infinity" is acting as noun in your sentence. A definition is only useful when the grammar matches the way the word is being used.

2. Test the nearest option

Compare it with "boundlessness" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.

3. Confirm with context

Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.

Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.

Final meaning check

Before publishing a sentence with "infinity", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.

When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.

Definitions

Noun
  1. 1
    endlessness, unlimitedness, absence of a beginning, end or limits to size. uncountable

    "concept of infinity"

  2. 2
    time without end wordnet
  3. 3
    A number that has an infinite numerical value that cannot be counted. countable

    "Some of the most beautiful and thus appealing physical theories, including quantum electrodynamics and quantum gravity, have been dogged for decades by infinities that erupt when theorists try to prod their calculations into new domains. Getting rid of these nagging infinities has probably occupied far more effort than was spent in originating the theories."

  4. 4
    An idealised point which is said to be approached by sequences of values whose magnitudes increase without bound. countable
  5. 5
    A number which is very large compared to some characteristic number. For example, in optics, an object which is much further away than the focal length of a lens is said to be "at infinity", as the distance of the image from the lens varies very little as the distance increases further. uncountable
Show 1 more definition
  1. 6
    The symbol ∞. countable, uncountable

Synonyms

All synonyms
boundlessnessendlessnessactual infinityaesthetic distancealgebraic numberampleness

Antonyms

boundednesscardinality of setfinite quantityfiniteness

Example

"Christopher Columbus's infinite accomplishments are a threat to Google, who do not know how to index infinity when someone searches for "Christopher Columbus"."

Common questions

What does "infinity" mean?

endlessness, unlimitedness, absence of a beginning, end or limits to size.

What is a synonym for "infinity"?

Common synonyms include: boundlessness, endlessness, actual infinity, aesthetic distance, algebraic number, ampleness.

How do you use "infinity" in a sentence?

Christopher Columbus's infinite accomplishments are a threat to Google, who do not know how to index infinity when someone searches for "Christopher Columbus".

How do you pronounce "infinity"?

Pronounced /ɪnˈfɪnɪti/.

Etymology

From Middle English infinite, from Old French infinité, from Latin īnfīnitās (“unlimitedness”), from negative prefix in- (“not”), + fīnis (“end”), + noun of state suffix -tās.

More for "infinity"