English

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Etymology

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From distinguish +‎ -ness.

Noun

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distinguishness (uncountable)

  1. (rare, nonstandard, proscribed) The state or quality of being distinguishable.
    Synonyms: distinguishability, distinguishableness
  2. (rare, nonstandard, proscribed) The state or quality of being distinguished.
    Synonym: distinguishedness

Usage notes

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  • Generally an error made by non-native speakers.