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

Lineage believes the California fire began when solar panel contractors were working on the roof, while the Washington fire’s cause is undetermined. — Celina Tebor, CNN Money, 8 Aug. 2026

An independent autopsy commissioned on the family’s behalf listed Wells’ cause and manner of death as undetermined pending further investigation. — Janelle Griffith, PEOPLE, 5 Aug. 2026

So far, investigations are ongoing and the nature and cause of Wells’ death remain undetermined. — James M. Thomas, The Conversation, 5 Aug. 2026

Although the details of the project – including how the money would be divided between states and how exactly water use would be reduced – are currently undetermined. — Swasti Singhai, USA Today, 4 Aug. 2026

Word History

First Known Use

15th century, in the meaning defined above

Rhymes for undetermined

• overdetermined
• determined
• predetermined
• redetermined
• termined