undetermined

adjective

un·​de·​ter·​mined ˌən-di-ˈtər-mənd How to pronounce undetermined (audio)
-dē-
Synonyms of undeterminednext
: not definitely or authoritatively decided, settled, or identified : not determined
an undetermined boundary
an undetermined species
at an as yet undetermined time
an undetermined number of people

Examples of undetermined in a Sentence

an undetermined form seen only from a distance the fate of the prisoners is still undetermined
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.
While an autopsy was conducted, his cause of death remains undetermined, pending a further investigation, sources said. John Annese, New York Daily News, 19 June 2026 The elevator will start operating at an undetermined date. Miami Herald, 18 June 2026 Washington — The results of the District of Columbia's Democratic primary for mayor is still undetermined, with Janeese Lewis George having a lead with 64% of the vote counted. Kathryn Watson, CBS News, 17 June 2026 The airport will remain closed for an undetermined amount of time, the sheriff said. Cindy Von Quednow, CNN Money, 14 June 2026 See All Example Sentences for undetermined

Word History

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of undetermined was in the 15th century

Browse Nearby Words

Cite this Entry

“Undetermined.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undetermined. Accessed 20 Jun. 2026.

More from Merriam-Webster on undetermined

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster