Official and Unsanctioned

Official

Official adjective - Ordered or allowed by those in authority.
Usage example: the official languages for those Olympic Games were French and English

Unsanctioned is an antonym for official in authorized topic.

Unsanctioned

Unsanctioned adjective - Without explicit official permission.

Official is an antonym for unsanctioned in topics: unauthorized, permitted.
Cite this Source
Unsanctioned and Official. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/official/unsanctioned
Official & Unsanctioned. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/official/unsanctioned>.
Unsanctioned or Official. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/official/unsanctioned.
Google Ngram Viewer shows how "official" and "unsanctioned" have occurred on timeline