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.
At this time, the containment status is unknown and the cause of the fire remains undetermined. Ca Wildfire Bot, Sacbee.com, 30 Dec. 2025 The cause of the fire is currently undetermined, but the investigation is ongoing, according to officials. Leah Sarnoff, ABC News, 29 Dec. 2025 The cause of the fire is undetermined and still under investigation. Briah Lumpkins, Charlotte Observer, 29 Dec. 2025 The cause of the fire remains undetermined and is under investigation. Nathalie Marie Palacios, CBS News, 27 Dec. 2025 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

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Cite this Entry

“Undetermined.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undetermined. Accessed 3 Jan. 2026.

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