Erstwhile and Older

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Erstwhile adjective - Having been such at some previous time.

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Older is a synonym for erstwhile. In some cases you can use "Older" instead an adjective "Erstwhile".

Older adjective - Being of advanced years and especially past middle age.

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Erstwhile is a synonym for older. Sometimes you can use "Erstwhile" instead an adjective "Older".

Namechecked in the Made In Canada episode "Alan's Brother", in which the executives at Pyramid Productions do this to erstwhile CEO Alan's older brother (and legal owner of Pyramid) Frank after he is released from a mental hospital, takes over as CEO, and proves even more inept than Alan.

Source: Gaslighting
MayDecember Romance: Following his transformation back to his human state, the erstwhile Beast is physically about 20 years older than Beauty, owing to the 200 years he spent cursed.

Source: Literature / Beauty: A Retelling of Beauty and the Beast

Cite this Source

Older and Erstwhile. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/erstwhile/older

Erstwhile & Older. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/erstwhile/older>.

Older or Erstwhile. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/erstwhile/older.

Google Ngram Viewer shows how "erstwhile" and "older" have occurred on timeline