What does "undistinguishableness" mean?

The quality of being undistinguishable; indistinguishability, indistinctness.

What is a synonym for "undistinguishableness"?

Common synonyms include: uniformity.

noun

noun ·Rare ·Advanced level

Noun

1
The quality of being undistinguishable; indistinguishability, indistinctness. rare, uncountable

From undistinguishable + -ness.