Established and Undetermined

Established

Established adjective - Brought about or set up or accepted; especially long established.

Undetermined is an antonym for established.

Nearby Words: establishment, establishing

Undetermined

Undetermined adjective - Not yet settled or decided.
Usage example: the fate of the prisoners is still undetermined

Established is an antonym for undetermined.

Nearby Word: undeterminable
Cite this Source
Undetermined and Established. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/established/undetermined
Established & Undetermined. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/established/undetermined>.
Undetermined or Established. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/established/undetermined.
Google Ngram Viewer shows how "established" and "undetermined" have occurred on timeline