unabraded

/ˌʌnəˈbreɪdɪd/
adjective
  1. Not worn away or damaged by rubbing or scraping; smooth and intact.
    • After years of use, the table's surface remained unabraded thanks to the protective coating.
    • The coin was found in perfect condition, completely unabraded.
    • Geologists examined the unabraded rock to study its original texture.
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