Indeterminacy (noun)

The state or quality of being uncertain, indefinite, or undefined.

Origin:

Late 19th century: from in- "not" + determinacy, on the pattern of indeterminate.

Examples:

1. The indeterminacy of the situation made it difficult to predict the outcome.
2. The indeterminacy of the data made it impossible to reach a conclusion.
3. The indeterminacy of the experiment created a margin of error.
4. The indeterminacy of the parameters made the simulation unreliable.
5. The indeterminacy of the process was frustrating for the team.