ultraclean

/ˌʌltrəˈkliːn/
adjective
  1. Extremely clean, with no dirt, dust, or germs; often used to describe a very high standard of cleanliness.
    • The factory produces ultraclean water for use in computer chip manufacturing.
    • The operating room must be kept ultraclean to prevent infections.
    • She insisted on an ultraclean kitchen, wiping every surface twice.
Antonyms
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