undetermined

adjective

un·​de·​ter·​mined ˌən-di-ˈtər-mənd 

-dē-

: 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

Synonyms of undetermined

• vague
• faint
• unclear

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

Improper turn - speed undetermined. —Ben Wheeler, Kansas City Star, 12 Jan. 2026

The Patriots will play next weekend against an undetermined opponent. —Matt Schooley, CBS News, 12 Jan. 2026

At this time, there is no information on the containment of the fire and the cause of it remains undetermined. —Ca Wildfire Bot, Sacbee.com, 9 Jan. 2026

Mackinac Bridge officials are cautioning the public that winter ice accumulation on the structure could force the span's closure for undetermined lengths of time, and to plan accordingly. —Jalen Williams, Freep.com, 9 Jan. 2026

Word History

First Known Use

15th century, in the meaning defined above

Rhymes for undetermined

• overdetermined
• determined
• predetermined
• redetermined
• termined