undetermined

adjective

1. 1

   not precisely determined or established; not fixed or known in advance

   of indeterminate age

   a zillion is a large indeterminate number

2. 2

   not yet having been ascertained or determined

   of undetermined species

3. 3

   not brought to a conclusion; subject to further thought

   an open question

   our position on this bill is still undecided