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

Riverside Fire Chief Greg White told The Times that the investigation into the cause of the fire is ongoing, and the cause remains undetermined. — Los Angeles Times, 24 Sep. 2026

During the incident, the suspects allegedly stole the clerk’s cellular phone, watch and an undetermined amount of cash, police said. — Staff Report, Hartford Courant, 23 Sep. 2026

The Los Angeles County Medical Examiner’s Office later confirmed that an autopsy had been completed, but the cause of death remained undetermined pending further testing. — Melissa Rudy, FOXNews.com, 22 Sep. 2026

The state’s autopsy was performed July 7, and a separate, out-of-state autopsy requested by Wells’ family — which described his manner of death as undetermined pending further investigation — was performed July 10. — Alisha Ebrahimji, CNN Money, 22 Sep. 2026

Word History

First Known Use

15th century, in the meaning defined above

Rhymes for undetermined

• overdetermined
• determined
• predetermined
• redetermined
• termined