• IPA: /ɪnˈæktɪv/


  1. Not active, temporarily or permanently.
    The volcano is inactive, but is only dormant.
    An inactive boy, he rarely exercised and preferred to stay indoors.
  2. Not functioning or operating; broken down
    The photocopier is inactive pending repair.
  3. Retired from duty or service.
    Admiral Jones is now on the inactive list.
  4. (chemistry) Relatively inert.
    Aluminium is inactive towards water.
  5. (physics) Showing no optical activity in polarized light.
    Synthetic glycine is optically inactive as it contains equal amounts of the d- and l- form.
Synonyms Antonyms Translations

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