"Non-deterministic" totally works, but it's not necessarily a bug or even a code smell even if deterministic inputs lead to non-deterministic results. The order

"Non-deterministic" totally works, but it's not necessarily a bug or even a code smell even if deterministic inputs lead to non-deterministic results. The order a series of parallel network calls returns is non-deterministic, for instance, but hardly a bug. Otherwise, yes, agreed on all counts. It's telling that even when posing the question of what other term to use besides race condition, the op used 'non-deterministic'.