Infinity

/ɪnˈfɪnɪti/ · noun

Meaning

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

Definitions by Sense

1. (uncountable) endlessness, unlimitedness, absence of a beginning, end or limits to size.
2. (countable, mathematics) A number that has an infinite numerical value that cannot be counted.
3. (countable, topology, mathematical analysis) An idealised point which is said to be approached by sequences of values whose magnitudes increase without bound.
4. (uncountable) 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.
5. (countable, uncountable) The symbol ∞.

Example Sentences

concept of infinity

The desert stretched out toward the horizon as if into infinity.

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.

Synonyms for infinity

Antonyms for infinity

Related Words

Word Forms

• infinities

Usage Notes

Choose a synonym only when it preserves the intended meaning, tone, and grammar of the full sentence.

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