infinity

noun

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

(countable, mathematics) A number that has an infinite numerical value that cannot be counted.

(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.

(countable, uncountable) The symbol ∞.

(countable, topology, mathematical analysis) An idealised point which is said to be approached by sequences of values whose magnitudes increase without bound.

Roots

finisfin- · Latin · end, boundary

Synonyms for infinity

eternityn infinituden endlessnessn boundlessnessn eternalnessn ceaselessnessn coeternityn sempiternityn timelessnessn vastnessn

Synonyms & related words for infinity

Find synonyms, related words, and the definition of infinity — including eternity, infinitude, endlessness, boundlessness, eternalness, ceaselessness. Dendril is a free visual thesaurus that shows them on an interactive map where stronger matches sit closer to the center — no signup, no ads.

Words related to infinity

Explore words related to infinity — words associated with it, words that go with it, and its nearest matches in meaning. Related words include infinite, infiniteness, limitlessness, incessantness, sempiternal, endless, transfinite, limitless. Click any word to make it the center of the map and keep exploring the web of connections.

Synonyms for infinity

Common synonyms for infinity include eternity, infinitude, endlessness, boundlessness, eternalness, ceaselessness, coeternity, sempiternity — words that share a close meaning. Hover or tap any word on the map for its definition and part of speech.

Where does infinity come from?

The word infinity breaks down into one root of Latin origin: the root fin-, from Latin finis (“end, boundary”). Explore each root to see other English words built from the same source.