indeterminate

IPA: ɪndɪtˈɝmɪnɪt

(algebra, strict sense) A symbol that resembles a variable or parameter but is used purely formally and neither signifies nor is ever assigned a particular value;

Not accurately determined or determinable.
Imprecise or vague.
(mathematical analysis, of certain forms of limit) Not definitively or precisely determined, because of the presence of infinity or zero symbols used in any of several improper combinations.
(biology, of growth) With no genetically defined end, and thus theoretically limitless.
(botany, of inflorescences) Not topped with some form of terminal bud.
Intersex.
(architecture) Designed to allow the incorporation of future changes whose nature is not yet known.

Examples of "indeterminate" in Sentences

The outcome of the experiment was indeterminate, leaving the researchers unsure of the results
She found herself in a state of indeterminate confusion, unable to make a decision
The length of the meeting was indeterminate, as there was no set end time
The committee's decision was left indeterminate due to conflicting opinions among members
The future of the project remained indeterminate, awaiting further information before moving forward