unsanctioned

adjective

un·​sanc·​tioned ˌən-ˈsaŋ(k)-shənd How to pronounce unsanctioned (audio)
Synonyms of unsanctionednext
: lacking effective or authoritative approval or consent : not sanctioned
an unsanctioned boxing match
… a solution unsanctioned by educated custom …—Edward Finegan

Examples of unsanctioned in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In all, 1,200 agents sent more than 70,000 messages and files through the unsanctioned message board, according to an independent investigation from the AI research nonprofit METR. — Dan Goodin, ArsTechnica, 27 Aug. 2026 Meta and Anthropic also disclosed their own systems took unsanctioned actions during cybersecurity tests, a wake-up call for the AI and cybersecurity industry. — Hadas Gold, CNN Money, 24 Aug. 2026 Then in August, the UK AI Security Institute shared a report detailing how Anthropic’s Mythos 5 took autonomous, unsanctioned actions on the internet in a training evaluation, targeting real people and organizations. — Tim Keary, Forbes.com, 17 Aug. 2026 The shooting occurred at an unsanctioned party near the intersection of Hale Avenue and Miramonte Avenue in Morgan Hill, an area tucked between fields and a mushroom farm. — Caelyn Pender, Mercury News, 28 July 2026 See All Example Sentences for unsanctioned

Word History

First Known Use

1785, in the meaning defined above

Time Traveler
The first known use of unsanctioned was in 1785

Rhymes for unsanctioned

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Browse Nearby Words

unsanctimonious
unsanctioned
unsandaled
See all Nearby Words

Cite this Entry

“Unsanctioned.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unsanctioned. Accessed 2 Sep. 2026.

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