Synonyms of infinity

infinity

noun

in-ˈfi-nə-tē 

as in perpetuity

endless time

it seemed as though that meeting might extend into infinity

Synonyms & Similar Words

• perpetuity
• eternity
• foreverness
• everlasting
• endlessness
• permanence
• boundlessness
• limitlessness
• timelessness
• permanency
• interminableness

Antonyms & Near Antonyms

• impermanence
• transience
• transitoriness
• ephemerality
• temporariness

Example Sentences

Recent Examples of infinity

The upper level family pool has an infinity-edge that empties into a lower-level adults-only pool with in-water loungers and whirlpool spa tubs. — Katie Riley, Southern Living, 27 Aug. 2026

The 2016 installation also expresses two of Kusama's characteristic themes, infinity and obsessive repetition, according to the art museum's description. — Bebe Hodges, Cincinnati Enquirer, 27 Aug. 2026

The nearly 40-year-old flagship in Arlington remains as busy as ever, cranking out mouthwatering birds that self-baste while spinning into infinity over blazing charcoal. — Warren Rojas, Washington Post, 19 Aug. 2026

The mother-daughter duo opted for an eye design with an infinity symbol below it. — Hannah Sacks, PEOPLE, 19 Aug. 2026