Sesquicentenarian

//ˌsɛs.kwɪˌsɛn.təˈnɛəɹi.ən// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Someone or something of 150 years of age, or between 150 and 159 (in its sixteenth decade of life or existence) rare

Etymology

From sesqui- + centenarian.

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