What are the antonyms for UNUSED?

Synonyms for UNUSED

Usage Examples for UNUSED

  1. She put me into a mass of loose hay, in one of the unused stalls. - "Jim Davis" by John Masefield
  2. The request is common from those unused to an operation, and I accepted without other comment than to assure him he need fear no danger. - "A Breath of Prairie and other stories" by Will Lillibridge