Once and Ongoing

Opposite meaning words

Once adjective - Having been such at some previous time.

Usage example: the once child star is now a lawyer in the entertainment industry

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Ongoing is an antonym for once.

Ongoing adjective - Being in progress or development.

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Once is an antonym for ongoing.

Cite this Source

Ongoing and Once. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/once/ongoing

Once & Ongoing. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/once/ongoing>.

Ongoing or Once. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/once/ongoing.

Google Ngram Viewer shows how "once" and "ongoing" have occurred on timeline