Future
Future adjective - Of a time after the present.
Once
Once adjective - Having been such at some previous time.
Usage example: the once child star is now a lawyer in the entertainment industry
Both words in one sentence
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However, since that would have created some really embarrassing press for the circus, it was better that the once and future Robins took care of this.
Source: You Meddling Kids -
Britannia, the anthropomorphic personification of the peoples of Great Britain, and the once and future British Empire.
Source: Anthropomorphic Personification - Synopsis: In which 10 gets the well deserved comeuppance he never did in canon, delivered by Harriet Jones, once and future Prime Minister.
Source: Fanfic Recs / Tenth Doctor Fics
Cite this Source
Once and Future. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/future/once
Future & Once. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/future/once>.
Once or Future. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/future/once.
Google Ngram Viewer shows how "future" and "once" have occurred on timeline