Erstwhile and Preliminary

Erstwhile

Erstwhile adjective - Having been such at some previous time.

Preliminary and erstwhile are semantically related. In some cases you can use "Preliminary" instead an adjective "Erstwhile".

Preliminary

Preliminary adjective - Coming before the main part or item usually to introduce or prepare for what follows.

Erstwhile and preliminary are semantically related. Sometimes you can use "Erstwhile" instead an adjective "Preliminary".
Cite this Source
Preliminary and Erstwhile. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/erstwhile/preliminary
Erstwhile & Preliminary. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/erstwhile/preliminary>.
Preliminary or Erstwhile. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/erstwhile/preliminary.
Google Ngram Viewer shows how "erstwhile" and "preliminary" have occurred on timeline