Septuagenary

//ˌsɛpt͡ʃəd͡ʒɛnəri// adj, noun

adj, noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    Synonym of septuagenarian: a seventy-year-old. archaic
Adjective
  1. 1
    Of or related to the number seventy, particularly archaic, not-comparable
  2. 2
    Of or related to the number seventy, particularly; Synonym of septuagenarian: lasting or aged seventy years; seventy-year-old. archaic, not-comparable

Synonyms

All synonyms
septuagenarianseptuagenarianseventysomething

Etymology

From Latin septuāgēnārius (“containing 70”) either directly or via French septuagénaire, from Latin septuāgēnus (“70 each”) + -ārius (“-ary”), from septuāgintā (“seven tens, 70”). Cognate with septuagenarian.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.