The indeterminacy of the situation made it difficult to make a decision.

There are many indeterminacies in the theory.

The indeterminacy principle, also known as Heisenberg's uncertainty principle, states that the more precisely the position of a particle is known, the less precisely its momentum can be known, and vice versa.

Quantum indeterminacy is a fundamental concept in quantum mechanics.

Quantum indeterminacies are fundamental aspects of quantum mechanics.