Undetermined (adjective)

1. Not yet established or fixed.
2. Not yet decided or known.

Origin:

Late middle english: from un-1 + determined.

Examples:

1. The cause of the accident was undetermined.
2. The outcome of the election was undetermined.
3. The length of the delay was undetermined.
4. The location of the missing person was undetermined.
5. The price of the item was undetermined.