The story
From indistinguishable + -ness.
Etymology from Wiktionary, CC BY-SA 4.0.
indistinguishableness
Today it means: Synonym of indistinguishability (“the state or quality of being indistinguishable”). Full definition →
Today it means: Synonym of indistinguishability (“the state or quality of being indistinguishable”). Full definition →
From indistinguishable + -ness.
Etymology from Wiktionary, CC BY-SA 4.0.