dormant - definition and synonyms

adjective 

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/ˈdɔː(r)mənt/
  1. something that is dormant is not active or developing now, but it may become active or develop in the future

    The plants remain dormant all winter.

    a dormant volcano

    lie dormant (=remain dormant):

    The virus can lie dormant for up to ten years.

derived word

dormancy

noun [uncountable]