undetermined
adj. B2 Upper Intermediate US //ˌəndiˈtɝmənd// UK //ˌʌndɪtˈɜːmɪnd// un·de·ter·mined
adj. not yet decided or known. You use this when a result or a fact is still waiting to be found out.
adj. not yet decided, established, or known. Often used to describe a status or result that remains in a state of uncertainty.
The winner of the race is still undetermined.
The cause of the accident remains undetermined until the police finish their investigation.
While the initial evidence suggested a clear pattern, the final outcome of the experiment remains undetermined until the data is fully processed by the research team.
From un- + determined.