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

The airport will remain closed for an undetermined amount of time, the sheriff said. — Cindy Von Quednow, CNN Money, 14 June 2026

The cause of the duck's death is undetermined but sparked concern from onlookers. — Michelle Del Rey, USA Today, 22 June 2026

An autopsy left the cause of death as undetermined, though there were no obvious signs of trauma on the bones discovered. — Jon Blistein, Rolling Stone, 29 June 2026

However, Kenneth's cause of death remains undetermined due to the condition of his body. — Abigail Adams, PEOPLE, 24 June 2026

Word History

First Known Use

15th century, in the meaning defined above

Rhymes for undetermined

• overdetermined
• determined
• predetermined
• redetermined
• termined