undetermined

not yet having been ascertained or determined; "of undetermined species"

not precisely determined or established; not fixed or known in advance; "of indeterminate age"; "a zillion is a large indeterminate number"; "an indeterminate point of law"; "the influence of environment is indeterminate"; "an indeterminate future"

not brought to a conclusion; subject to further thought; "an open question"; "our position on this bill is still undecided"; "our lawsuit is still undetermined"