Standard Lemma guide

sesquicentenarian

noun · 1 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

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  • Received-Pronunciation: /ˌsɛs.kwɪˌsɛn.təˈnɛəɹi.ən/
  • General-American: /ˌsɛs.kwɪˌsɛn.təˈnɛɹi.ən/
  • rhymes with -ɛəɹiən

1

noun

Meaning 1

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

Definition source: English Wiktionary via Wiktextract

Usage: rare

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From sesqui- + centenarian.