adjective
indeterminate
in-di-TUR-muh-nuht/ˌɪndɪˈtɜːrmɪnət/
Not fixed or clearly known.
The spinning coin’s outcome remains indeterminate.

Etymology
Marking off boundaries developed into fixing or settling a matter. The negative prefix reverses that idea: something indeterminate has not been given definite limits or a settled answer.
In context
determining sex from just looking at the features of a skeleton, which can sometimes be misleading, not there, or indeterminate. Ancient DNA analysis can accurately determine both genetic sex and biological kinship
More examples
- The sample was of indeterminate origin.
- His expression made his intentions indeterminate.
- The investigation left the exact cause indeterminate.
Forms
indeterminate
Similar words
- uncertain
- Uncertain is not known for sure; indeterminate may lack a fixed value or limit altogether.
- undefined
- Undefined has not been specified; indeterminate can remain unresolved even after examination.