Quinquagenarian

//ˌkwɪŋkwəd͡ʒəˈnɛɹiən// adj, noun

adj, noun ·Uncommon ·Advanced level

Definitions

Noun
  1. 1
    Synonym of pentecoster: an officer who commands 50 men. obsolete, rare
  2. 2
    Synonym of fiftysomething: a person between 50 and 59 years old.
Adjective
  1. 1
    Of or related to command over 50 men. not-comparable, obsolete, rare
  2. 2
    Of or related to fiftysomethings. not-comparable

Synonyms

All synonyms
denarianfiftysomethingnonagenarianoctogenarianpentagenarianpentecoster

Etymology

From Latin quinquāgēnārius (“containing 50”) + -an, either directly or via French quinquagénaire, from Latin quīnquāgēnus (“50 each”) + -ārius (“-ary”), from quīnquāgintā (“five tens, fifty”). Cognate with quinquagenary.

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