Standard Lemma guide

infinity

noun · 6 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ɪnˈfɪnɪti/
  • General-American: [ɪnˈfɪnɪɾi]
  • Southern-England: Recorded audio is listed in the source snapshot.
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -ɪnɪti
  • CMU ARPABET: IH2 N F IH1 N IH0 T IY0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

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

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

Examples

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

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A number that has an infinite numerical value that cannot be counted.

Definition source: English Wiktionary via Wiktextract

Usage: countable

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: mul:∞

Antonyms: none provided

3

noun

Meaning 3

An idealised point which is said to be approached by sequences of values whose magnitudes increase without bound.

Definition source: English Wiktionary via Wiktextract

Usage: countable

Topics: mathematical-analysis, mathematics, sciences, topology

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

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.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

The symbol ∞.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

time without end

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: eternity

Antonyms: none provided

Broader terms: time

Narrower terms: alpha and omega

History

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.

Across languages

Translations

115 source translations are retained for this English entry.

  • Afrikaans: oneindigheid — endlessness, unlimitedness, absence of end or limit
  • Albanian: pafundësi — endlessness, unlimitedness, absence of end or limit
  • Armenian: անսահմանություն (ansahmanutʻyun) — endlessness, unlimitedness, absence of end or limit
  • Assamese: অসীম (oxim) — endlessness, unlimitedness, absence of end or limit
  • Basque: infinitu — endlessness, unlimitedness, absence of end or limit
  • Bengali: অসীম (ośim) — endlessness, unlimitedness, absence of end or limit
  • Bulgarian: безкрайност (bezkrajnost) — endlessness, unlimitedness, absence of end or limit
  • Catalan: infinitat — endlessness, unlimitedness, absence of end or limit
  • Chinese Mandarin: 無限 /无限 (wúxiàn) — endlessness, unlimitedness, absence of end or limit
  • Czech: nekonečno — endlessness, unlimitedness, absence of end or limit
  • Danish: uendelighed — endlessness, unlimitedness, absence of end or limit
  • Dutch: oneindigheid — endlessness, unlimitedness, absence of end or limit
  • Esperanto: senfineco — endlessness, unlimitedness, absence of end or limit
  • Estonian: lõpmatus — endlessness, unlimitedness, absence of end or limit
  • Finnish: äärettömyys — endlessness, unlimitedness, absence of end or limit
  • Finnish: loputtomuus — endlessness, unlimitedness, absence of end or limit
  • Finnish: rajattomuus — endlessness, unlimitedness, absence of end or limit
  • French: infinité — endlessness, unlimitedness, absence of end or limit
  • Georgian: უსასრულობა (usasruloba) — endlessness, unlimitedness, absence of end or limit
  • German: Unendlichkeit — endlessness, unlimitedness, absence of end or limit
  • Hebrew: אֵינְסוֹף (einsóf) — endlessness, unlimitedness, absence of end or limit
  • Hindi: अनंत (anant) — endlessness, unlimitedness, absence of end or limit
  • Hungarian: végtelenség — endlessness, unlimitedness, absence of end or limit
  • Icelandic: óendanleiki — endlessness, unlimitedness, absence of end or limit
  • Ilocano: awan inggana — endlessness, unlimitedness, absence of end or limit
  • Indonesian: tak hingga — endlessness, unlimitedness, absence of end or limit
  • Indonesian: ananta — endlessness, unlimitedness, absence of end or limit
  • Indonesian: ketakberhinggaan — endlessness, unlimitedness, absence of end or limit
  • Irish: éigríoch — endlessness, unlimitedness, absence of end or limit
  • Japanese: 無限 (mugen) — endlessness, unlimitedness, absence of end or limit
  • Kannada: ಅನಂತ (ananta) — endlessness, unlimitedness, absence of end or limit
  • Korean: 무한 (muhan) — endlessness, unlimitedness, absence of end or limit
  • Northern Kurdish: bêdawî — endlessness, unlimitedness, absence of end or limit
  • Latin: īnfīnitās — endlessness, unlimitedness, absence of end or limit
  • Latvian: bezgalība — endlessness, unlimitedness, absence of end or limit
  • Lithuanian: begalybė — endlessness, unlimitedness, absence of end or limit
  • Malagasy: tsiefa — endlessness, unlimitedness, absence of end or limit
  • Malay: ketidakterhinggaan — endlessness, unlimitedness, absence of end or limit
  • Malay: infiniti — endlessness, unlimitedness, absence of end or limit
  • Malayalam: അനന്തത (anantata) — endlessness, unlimitedness, absence of end or limit
  • Manx: neuyerinaght — endlessness, unlimitedness, absence of end or limit
  • Marathi: अनंत (ananta) — endlessness, unlimitedness, absence of end or limit
  • Mongolian: хязгааргүй (xjazgaargüj) — endlessness, unlimitedness, absence of end or limit
  • Old English: unġeendodlīcnes — endlessness, unlimitedness, absence of end or limit
  • Polish: nieskończoność — endlessness, unlimitedness, absence of end or limit
  • Polish: bezbrzeże — endlessness, unlimitedness, absence of end or limit
  • Portuguese: infinito — endlessness, unlimitedness, absence of end or limit
  • Portuguese: infinidade — endlessness, unlimitedness, absence of end or limit
  • Romanian: infinitate — endlessness, unlimitedness, absence of end or limit
  • Russian: бесконе́чность (beskonéčnostʹ) — endlessness, unlimitedness, absence of end or limit
  • Russian: безграни́чность (bezgraníčnostʹ) — endlessness, unlimitedness, absence of end or limit
  • Northern Sami: agálašvuohta — endlessness, unlimitedness, absence of end or limit
  • Sanskrit: अदिति (aditi) — endlessness, unlimitedness, absence of end or limit
  • Serbo-Croatian: бесконачност — endlessness, unlimitedness, absence of end or limit
  • Serbo-Croatian: бескрајност — endlessness, unlimitedness, absence of end or limit
  • Serbo-Croatian: beskonačnost — endlessness, unlimitedness, absence of end or limit
  • Serbo-Croatian: beskrajnost — endlessness, unlimitedness, absence of end or limit
  • Spanish: infinidad — endlessness, unlimitedness, absence of end or limit
  • Swedish: oändlighet — endlessness, unlimitedness, absence of end or limit
  • Swedish: ändlöshet — endlessness, unlimitedness, absence of end or limit
  • Tagalog: awanggan — endlessness, unlimitedness, absence of end or limit
  • Tamil: முடிவிலி (muṭivili) — endlessness, unlimitedness, absence of end or limit
  • Thai: อนันต์ (à-nan) — endlessness, unlimitedness, absence of end or limit
  • Turkish: sonsuzluk — endlessness, unlimitedness, absence of end or limit
  • Uzbek: cheksizlik — endlessness, unlimitedness, absence of end or limit
  • Vietnamese: vô cực — endlessness, unlimitedness, absence of end or limit
  • Welsh: anfeidredd — endlessness, unlimitedness, absence of end or limit
  • Bulgarian: безкрайност (bezkrajnost) — a number that has an infinite, uncountable numerical value
  • Catalan: infinitat — a number that has an infinite, uncountable numerical value
  • Esperanto: infinito — a number that has an infinite, uncountable numerical value
  • Finnish: ääretön — a number that has an infinite, uncountable numerical value
  • French: infinité — a number that has an infinite, uncountable numerical value
  • Greek: άπειρο (ápeiro) — a number that has an infinite, uncountable numerical value
  • Hungarian: végtelen — a number that has an infinite, uncountable numerical value
  • Irish: éigríoch — a number that has an infinite, uncountable numerical value
  • Japanese: 無限大 (mugendai) — a number that has an infinite, uncountable numerical value
  • Korean: 무한대 (muhandae) — a number that has an infinite, uncountable numerical value
  • Malay: ketidakterhinggaan — a number that has an infinite, uncountable numerical value
  • Malay: infiniti — a number that has an infinite, uncountable numerical value
  • Portuguese: infinito — a number that has an infinite, uncountable numerical value
  • Romanian: infinit — a number that has an infinite, uncountable numerical value
  • Russian: бесконе́чность (beskonéčnostʹ) — a number that has an infinite, uncountable numerical value
  • Serbo-Croatian: bȅskonačnōst — a number that has an infinite, uncountable numerical value
  • Spanish: infinito — a number that has an infinite, uncountable numerical value
  • Swedish: oändlighet — a number that has an infinite, uncountable numerical value
  • Tagalog: awanggan — a number that has an infinite, uncountable numerical value
  • Turkish: sonsuz — a number that has an infinite, uncountable numerical value
  • Finnish: ääretön — a number which is very large compared to some characteristic number
  • French: infini — a number which is very large compared to some characteristic number
  • Portuguese: infinito — a number which is very large compared to some characteristic number
  • Romanian: infinit — a number which is very large compared to some characteristic number
  • Romanian: nesfârșit — a number which is very large compared to some characteristic number
  • Russian: бесконе́чность (beskonéčnostʹ) — a number which is very large compared to some characteristic number
  • Serbo-Croatian: bȅskonačnōst — a number which is very large compared to some characteristic number
  • Spanish: infinidad — a number which is very large compared to some characteristic number
  • Swedish: oändlighet — a number which is very large compared to some characteristic number
  • Turkish: sonsuz — a number which is very large compared to some characteristic number
  • Bulgarian: безкрайност (bezkrajnost) — the symbol ∞
  • Finnish: ääretön — the symbol ∞
  • French: infini — the symbol ∞
  • German: Unendlichkeit — the symbol ∞
  • Malay: ketidakterhinggaan — the symbol ∞
  • Malay: infiniti — the symbol ∞
  • Polish: nieskończoność — the symbol ∞
  • Polish: symbol nieskończoności — the symbol ∞
  • Polish: lemniskata — the symbol ∞
  • Portuguese: infinito — the symbol ∞
  • Romanian: infinit — the symbol ∞
  • Russian: бесконе́чность (beskonéčnostʹ) — the symbol ∞
  • Serbo-Croatian: bȅskonačnōst — the symbol ∞
  • Spanish: infinito — the symbol ∞
  • Swedish: oändlighetstecken — the symbol ∞
  • Tagalog: awanggan — the symbol ∞
  • Tamil: முடிவிலி (muṭivili) — the symbol ∞
  • Turkish: sonsuz — the symbol ∞
Real reading context

infinity in complete knowledge articles