undetermined
1. [ adjective ] not yet having been ascertained or determined
Examples:

"of undetermined species"

Related terms: determined unexplained
2. [ adjective ] not brought to a conclusion; subject to further thought
Synonyms: open unresolved undecided
Examples:

"an open question" "our position on this bill is still undecided" "our lawsuit is still undetermined"

Related terms: unsettled
3. [ adjective ] not precisely determined or established; not fixed or known in advance
Synonyms: indeterminate
Examples:

"of indeterminate age" "a zillion is a large indeterminate number" "an indeterminate point of law" "the influence of environment is indeterminate" "an indeterminate future"

Related terms: determinate open-ended cost-plus open-ended uncertain indeterminable inconclusive
Similar spelling:   undeterminable
  undeterred
  undetected
  untethered