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

Sorffly Davius, 46, died of undetermined causes while stationed at Camp Buehring in Kuwait, according to the New York National Guard. — Fernando Cervantes Jr, USA Today, 20 July 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

Marie-Philip Poulin, captain of the Montreal Victoire and the Canadian women’s national hockey team, will undergo surgery on her ACL and meniscus in July and will be out for an undetermined amount of time. — Hailey Salvian, New York Times, 25 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