indistinguishability

/ˌɪndɪˌstɪŋɡwɪʃəˈbɪləti/
noun
  1. The quality of being impossible to tell apart from something else; the state of being identical or nearly identical in appearance, sound, or nature.
    • In quantum physics, the indistinguishability of particles is a fundamental concept.
    • The indistinguishability of the counterfeit bills from real ones fooled even the bank teller.
    • The indistinguishability of the two twins often led to mix-ups at school.
Antonyms
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